Home / 129,854.25-179,209.80-73,276.56

Finding the Fourth Proportional to 129,854.25, 179,209.80 and 73,276.56

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Solution

The fourth proportional to 129,854.25, 179,209.80 and 73,276.56 is: 101,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,854.25 : 179,209.80 = 73,276.56 : x
  2. Step 2: Convert to fraction form
    129,854.25/179,209.80 = 73,276.56/x
  3. Step 3: Cross multiply
    129,854.25x = 179,209.80 × 73,276.56
  4. Step 4: Simplify right side
    129,854.25x = 13,131,877,662.29
  5. Step 5: Solve for x
    x = 13,131,877,662.29/129,854.25
  6. Step 6: Final answer
    x = 101,127.82

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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.