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Finding the Fourth Proportional to 159,923.61, 240,030.51 and 85,106.75

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Solution

The fourth proportional to 159,923.61, 240,030.51 and 85,106.75 is: 127,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,923.61 : 240,030.51 = 85,106.75 : x
  2. Step 2: Convert to fraction form
    159,923.61/240,030.51 = 85,106.75/x
  3. Step 3: Cross multiply
    159,923.61x = 240,030.51 × 85,106.75
  4. Step 4: Simplify right side
    159,923.61x = 20,428,215,406.79
  5. Step 5: Solve for x
    x = 20,428,215,406.79/159,923.61
  6. Step 6: Final answer
    x = 127,737.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.