Home / 120,679.48-166,545.59-69,694.36

Finding the Fourth Proportional to 120,679.48, 166,545.59 and 69,694.36

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Solution

The fourth proportional to 120,679.48, 166,545.59 and 69,694.36 is: 96,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,679.48 : 166,545.59 = 69,694.36 : x
  2. Step 2: Convert to fraction form
    120,679.48/166,545.59 = 69,694.36/x
  3. Step 3: Cross multiply
    120,679.48x = 166,545.59 × 69,694.36
  4. Step 4: Simplify right side
    120,679.48x = 11,607,287,541.04
  5. Step 5: Solve for x
    x = 11,607,287,541.04/120,679.48
  6. Step 6: Final answer
    x = 96,182.78

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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.