Home / 142,432.10-213,366.55-124,921.70

Finding the Fourth Proportional to 142,432.10, 213,366.55 and 124,921.70

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Solution

The fourth proportional to 142,432.10, 213,366.55 and 124,921.70 is: 187,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,432.10 : 213,366.55 = 124,921.70 : x
  2. Step 2: Convert to fraction form
    142,432.10/213,366.55 = 124,921.70/x
  3. Step 3: Cross multiply
    142,432.10x = 213,366.55 × 124,921.70
  4. Step 4: Simplify right side
    142,432.10x = 26,654,112,149.14
  5. Step 5: Solve for x
    x = 26,654,112,149.14/142,432.10
  6. Step 6: Final answer
    x = 187,135.57

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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.