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Finding the Fourth Proportional to 159,630.13, 220,291.23 and 88,012.71

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Solution

The fourth proportional to 159,630.13, 220,291.23 and 88,012.71 is: 121,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,630.13 : 220,291.23 = 88,012.71 : x
  2. Step 2: Convert to fraction form
    159,630.13/220,291.23 = 88,012.71/x
  3. Step 3: Cross multiply
    159,630.13x = 220,291.23 × 88,012.71
  4. Step 4: Simplify right side
    159,630.13x = 19,388,428,141.53
  5. Step 5: Solve for x
    x = 19,388,428,141.53/159,630.13
  6. Step 6: Final answer
    x = 121,458.45

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1.5x scale

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.