Home / 161,456.64-242,246.47-72,689.73

Finding the Fourth Proportional to 161,456.64, 242,246.47 and 72,689.73

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Solution

The fourth proportional to 161,456.64, 242,246.47 and 72,689.73 is: 109,062.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,456.64 : 242,246.47 = 72,689.73 : x
  2. Step 2: Convert to fraction form
    161,456.64/242,246.47 = 72,689.73/x
  3. Step 3: Cross multiply
    161,456.64x = 242,246.47 × 72,689.73
  4. Step 4: Simplify right side
    161,456.64x = 17,608,830,429.66
  5. Step 5: Solve for x
    x = 17,608,830,429.66/161,456.64
  6. Step 6: Final answer
    x = 109,062.29

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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.