Home / 112,932.15-169,426.17-79,717.29

Finding the Fourth Proportional to 112,932.15, 169,426.17 and 79,717.29

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Solution

The fourth proportional to 112,932.15, 169,426.17 and 79,717.29 is: 119,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,932.15 : 169,426.17 = 79,717.29 : x
  2. Step 2: Convert to fraction form
    112,932.15/169,426.17 = 79,717.29/x
  3. Step 3: Cross multiply
    112,932.15x = 169,426.17 × 79,717.29
  4. Step 4: Simplify right side
    112,932.15x = 13,506,195,127.48
  5. Step 5: Solve for x
    x = 13,506,195,127.48/112,932.15
  6. Step 6: Final answer
    x = 119,595.66

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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.