Home / 102,436.11-141,362.55-57,117.02

Finding the Fourth Proportional to 102,436.11, 141,362.55 and 57,117.02

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Solution

The fourth proportional to 102,436.11, 141,362.55 and 57,117.02 is: 78,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,436.11 : 141,362.55 = 57,117.02 : x
  2. Step 2: Convert to fraction form
    102,436.11/141,362.55 = 57,117.02/x
  3. Step 3: Cross multiply
    102,436.11x = 141,362.55 × 57,117.02
  4. Step 4: Simplify right side
    102,436.11x = 8,074,206,888.79
  5. Step 5: Solve for x
    x = 8,074,206,888.79/102,436.11
  6. Step 6: Final answer
    x = 78,821.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.