Home / 121,688.28-182,531.62-49,640.92

Finding the Fourth Proportional to 121,688.28, 182,531.62 and 49,640.92

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Solution

The fourth proportional to 121,688.28, 182,531.62 and 49,640.92 is: 74,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,688.28 : 182,531.62 = 49,640.92 : x
  2. Step 2: Convert to fraction form
    121,688.28/182,531.62 = 49,640.92/x
  3. Step 3: Cross multiply
    121,688.28x = 182,531.62 × 49,640.92
  4. Step 4: Simplify right side
    121,688.28x = 9,061,037,545.89
  5. Step 5: Solve for x
    x = 9,061,037,545.89/121,688.28
  6. Step 6: Final answer
    x = 74,461.05

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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.