Home / 123,587.76-170,544.55-69,869.58

Finding the Fourth Proportional to 123,587.76, 170,544.55 and 69,869.58

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Solution

The fourth proportional to 123,587.76, 170,544.55 and 69,869.58 is: 96,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,587.76 : 170,544.55 = 69,869.58 : x
  2. Step 2: Convert to fraction form
    123,587.76/170,544.55 = 69,869.58/x
  3. Step 3: Cross multiply
    123,587.76x = 170,544.55 × 69,869.58
  4. Step 4: Simplify right side
    123,587.76x = 11,915,876,079.79
  5. Step 5: Solve for x
    x = 11,915,876,079.79/123,587.76
  6. Step 6: Final answer
    x = 96,416.31

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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.