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Finding the Fourth Proportional to 160,079.56, 240,110.66 and 81,191.74

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Solution

The fourth proportional to 160,079.56, 240,110.66 and 81,191.74 is: 121,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,079.56 : 240,110.66 = 81,191.74 : x
  2. Step 2: Convert to fraction form
    160,079.56/240,110.66 = 81,191.74/x
  3. Step 3: Cross multiply
    160,079.56x = 240,110.66 × 81,191.74
  4. Step 4: Simplify right side
    160,079.56x = 19,495,002,277.95
  5. Step 5: Solve for x
    x = 19,495,002,277.95/160,079.56
  6. Step 6: Final answer
    x = 121,783.21

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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.