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Finding the Fourth Proportional to 121,532.31, 167,714.28 and 67,816.76

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Solution

The fourth proportional to 121,532.31, 167,714.28 and 67,816.76 is: 93,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,532.31 : 167,714.28 = 67,816.76 : x
  2. Step 2: Convert to fraction form
    121,532.31/167,714.28 = 67,816.76/x
  3. Step 3: Cross multiply
    121,532.31x = 167,714.28 × 67,816.76
  4. Step 4: Simplify right side
    121,532.31x = 11,373,838,236.76
  5. Step 5: Solve for x
    x = 11,373,838,236.76/121,532.31
  6. Step 6: Final answer
    x = 93,586.95

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1.5x scale

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.