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Finding the Fourth Proportional to 159,526.29, 220,147.02 and 87,904.83

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Solution

The fourth proportional to 159,526.29, 220,147.02 and 87,904.83 is: 121,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,526.29 : 220,147.02 = 87,904.83 : x
  2. Step 2: Convert to fraction form
    159,526.29/220,147.02 = 87,904.83/x
  3. Step 3: Cross multiply
    159,526.29x = 220,147.02 × 87,904.83
  4. Step 4: Simplify right side
    159,526.29x = 19,351,986,368.11
  5. Step 5: Solve for x
    x = 19,351,986,368.11/159,526.29
  6. Step 6: Final answer
    x = 121,309.07

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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.