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Finding the Fourth Proportional to 160,194.72, 240,328.59 and 85,275.39

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Solution

The fourth proportional to 160,194.72, 240,328.59 and 85,275.39 is: 127,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,194.72 : 240,328.59 = 85,275.39 : x
  2. Step 2: Convert to fraction form
    160,194.72/240,328.59 = 85,275.39/x
  3. Step 3: Cross multiply
    160,194.72x = 240,328.59 × 85,275.39
  4. Step 4: Simplify right side
    160,194.72x = 20,494,114,821.85
  5. Step 5: Solve for x
    x = 20,494,114,821.85/160,194.72
  6. Step 6: Final answer
    x = 127,932.52

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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.