Home / 157,715.10-236,572.65-126,611.10

Finding the Fourth Proportional to 157,715.10, 236,572.65 and 126,611.10

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Solution

The fourth proportional to 157,715.10, 236,572.65 and 126,611.10 is: 189,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,715.10 : 236,572.65 = 126,611.10 : x
  2. Step 2: Convert to fraction form
    157,715.10/236,572.65 = 126,611.10/x
  3. Step 3: Cross multiply
    157,715.10x = 236,572.65 × 126,611.10
  4. Step 4: Simplify right side
    157,715.10x = 29,952,723,446.42
  5. Step 5: Solve for x
    x = 29,952,723,446.42/157,715.10
  6. Step 6: Final answer
    x = 189,916.65

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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.