Home / 124,908.80-172,359.64-73,923.76

Finding the Fourth Proportional to 124,908.80, 172,359.64 and 73,923.76

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Solution

The fourth proportional to 124,908.80, 172,359.64 and 73,923.76 is: 102,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,908.80 : 172,359.64 = 73,923.76 : x
  2. Step 2: Convert to fraction form
    124,908.80/172,359.64 = 73,923.76/x
  3. Step 3: Cross multiply
    124,908.80x = 172,359.64 × 73,923.76
  4. Step 4: Simplify right side
    124,908.80x = 12,741,472,661.05
  5. Step 5: Solve for x
    x = 12,741,472,661.05/124,908.80
  6. Step 6: Final answer
    x = 102,006.21

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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.