Home / 141,821.40-212,732.10-130,011.60

Finding the Fourth Proportional to 141,821.40, 212,732.10 and 130,011.60

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Solution

The fourth proportional to 141,821.40, 212,732.10 and 130,011.60 is: 195,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.40 : 212,732.10 = 130,011.60 : x
  2. Step 2: Convert to fraction form
    141,821.40/212,732.10 = 130,011.60/x
  3. Step 3: Cross multiply
    141,821.40x = 212,732.10 × 130,011.60
  4. Step 4: Simplify right side
    141,821.40x = 27,657,640,692.36
  5. Step 5: Solve for x
    x = 27,657,640,692.36/141,821.40
  6. Step 6: Final answer
    x = 195,017.40

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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.