Home / 157,428.34-217,251.24-85,806.92

Finding the Fourth Proportional to 157,428.34, 217,251.24 and 85,806.92

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Solution

The fourth proportional to 157,428.34, 217,251.24 and 85,806.92 is: 118,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,428.34 : 217,251.24 = 85,806.92 : x
  2. Step 2: Convert to fraction form
    157,428.34/217,251.24 = 85,806.92/x
  3. Step 3: Cross multiply
    157,428.34x = 217,251.24 × 85,806.92
  4. Step 4: Simplify right side
    157,428.34x = 18,641,659,770.58
  5. Step 5: Solve for x
    x = 18,641,659,770.58/157,428.34
  6. Step 6: Final answer
    x = 118,413.62

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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.