Home / 142,431.10-213,365.05-124,920.70

Finding the Fourth Proportional to 142,431.10, 213,365.05 and 124,920.70

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Solution

The fourth proportional to 142,431.10, 213,365.05 and 124,920.70 is: 187,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,431.10 : 213,365.05 = 124,920.70 : x
  2. Step 2: Convert to fraction form
    142,431.10/213,365.05 = 124,920.70/x
  3. Step 3: Cross multiply
    142,431.10x = 213,365.05 × 124,920.70
  4. Step 4: Simplify right side
    142,431.10x = 26,653,711,401.54
  5. Step 5: Solve for x
    x = 26,653,711,401.54/142,431.10
  6. Step 6: Final answer
    x = 187,134.07

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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.