Home / 117,545.72-162,215.02-66,557.10

Finding the Fourth Proportional to 117,545.72, 162,215.02 and 66,557.10

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Solution

The fourth proportional to 117,545.72, 162,215.02 and 66,557.10 is: 91,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,545.72 : 162,215.02 = 66,557.10 : x
  2. Step 2: Convert to fraction form
    117,545.72/162,215.02 = 66,557.10/x
  3. Step 3: Cross multiply
    117,545.72x = 162,215.02 × 66,557.10
  4. Step 4: Simplify right side
    117,545.72x = 10,796,561,542.92
  5. Step 5: Solve for x
    x = 10,796,561,542.92/117,545.72
  6. Step 6: Final answer
    x = 91,849.89

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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.