Home / 114,854.28-172,272.11-72,611.16

Finding the Fourth Proportional to 114,854.28, 172,272.11 and 72,611.16

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Solution

The fourth proportional to 114,854.28, 172,272.11 and 72,611.16 is: 108,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,854.28 : 172,272.11 = 72,611.16 : x
  2. Step 2: Convert to fraction form
    114,854.28/172,272.11 = 72,611.16/x
  3. Step 3: Cross multiply
    114,854.28x = 172,272.11 × 72,611.16
  4. Step 4: Simplify right side
    114,854.28x = 12,508,877,379.69
  5. Step 5: Solve for x
    x = 12,508,877,379.69/114,854.28
  6. Step 6: Final answer
    x = 108,910.85

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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.