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Finding the Fourth Proportional to 159,752.79, 220,459.59 and 88,132.79

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Solution

The fourth proportional to 159,752.79, 220,459.59 and 88,132.79 is: 121,623.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,752.79 : 220,459.59 = 88,132.79 : x
  2. Step 2: Convert to fraction form
    159,752.79/220,459.59 = 88,132.79/x
  3. Step 3: Cross multiply
    159,752.79x = 220,459.59 × 88,132.79
  4. Step 4: Simplify right side
    159,752.79x = 19,429,719,300.11
  5. Step 5: Solve for x
    x = 19,429,719,300.11/159,752.79
  6. Step 6: Final answer
    x = 121,623.66

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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.