Home / 141,703.78-212,428.50-129,377.26

Finding the Fourth Proportional to 141,703.78, 212,428.50 and 129,377.26

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Solution

The fourth proportional to 141,703.78, 212,428.50 and 129,377.26 is: 193,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,703.78 : 212,428.50 = 129,377.26 : x
  2. Step 2: Convert to fraction form
    141,703.78/212,428.50 = 129,377.26/x
  3. Step 3: Cross multiply
    141,703.78x = 212,428.50 × 129,377.26
  4. Step 4: Simplify right side
    141,703.78x = 27,483,417,275.91
  5. Step 5: Solve for x
    x = 27,483,417,275.91/141,703.78
  6. Step 6: Final answer
    x = 193,949.78

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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.