Home / 141,619.80-212,429.70-99,226.20

Finding the Fourth Proportional to 141,619.80, 212,429.70 and 99,226.20

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Solution

The fourth proportional to 141,619.80, 212,429.70 and 99,226.20 is: 148,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,619.80 : 212,429.70 = 99,226.20 : x
  2. Step 2: Convert to fraction form
    141,619.80/212,429.70 = 99,226.20/x
  3. Step 3: Cross multiply
    141,619.80x = 212,429.70 × 99,226.20
  4. Step 4: Simplify right side
    141,619.80x = 21,078,591,898.14
  5. Step 5: Solve for x
    x = 21,078,591,898.14/141,619.80
  6. Step 6: Final answer
    x = 148,839.30

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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.