Home / 141,783,415.80-212,675,123.70-90,723,089.40

Finding the Fourth Proportional to 141,783,415.80, 212,675,123.70 and 90,723,089.40

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Solution

The fourth proportional to 141,783,415.80, 212,675,123.70 and 90,723,089.40 is: 136,084,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,783,415.80 : 212,675,123.70 = 90,723,089.40 : x
  2. Step 2: Convert to fraction form
    141,783,415.80/212,675,123.70 = 90,723,089.40/x
  3. Step 3: Cross multiply
    141,783,415.80x = 212,675,123.70 × 90,723,089.40
  4. Step 4: Simplify right side
    141,783,415.80x = 19,294,544,260,591,160
  5. Step 5: Solve for x
    x = 19,294,544,260,591,160/141,783,415.80
  6. Step 6: Final answer
    x = 136,084,634.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.