Home / 225,299.04-310,981.92-129,869.52

Finding the Fourth Proportional to 225,299.04, 310,981.92 and 129,869.52

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Solution

The fourth proportional to 225,299.04, 310,981.92 and 129,869.52 is: 179,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,299.04 : 310,981.92 = 129,869.52 : x
  2. Step 2: Convert to fraction form
    225,299.04/310,981.92 = 129,869.52/x
  3. Step 3: Cross multiply
    225,299.04x = 310,981.92 × 129,869.52
  4. Step 4: Simplify right side
    225,299.04x = 40,387,072,679.08
  5. Step 5: Solve for x
    x = 40,387,072,679.08/225,299.04
  6. Step 6: Final answer
    x = 179,259.85

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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.