Home / 123,583.91-170,545.40-66,995.28

Finding the Fourth Proportional to 123,583.91, 170,545.40 and 66,995.28

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Solution

The fourth proportional to 123,583.91, 170,545.40 and 66,995.28 is: 92,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,583.91 : 170,545.40 = 66,995.28 : x
  2. Step 2: Convert to fraction form
    123,583.91/170,545.40 = 66,995.28/x
  3. Step 3: Cross multiply
    123,583.91x = 170,545.40 × 66,995.28
  4. Step 4: Simplify right side
    123,583.91x = 11,425,736,490.74
  5. Step 5: Solve for x
    x = 11,425,736,490.74/123,583.91
  6. Step 6: Final answer
    x = 92,453.27

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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.