Home / 112,117.90-167,982.45-72,654.70

Finding the Fourth Proportional to 112,117.90, 167,982.45 and 72,654.70

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Solution

The fourth proportional to 112,117.90, 167,982.45 and 72,654.70 is: 108,856.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,117.90 : 167,982.45 = 72,654.70 : x
  2. Step 2: Convert to fraction form
    112,117.90/167,982.45 = 72,654.70/x
  3. Step 3: Cross multiply
    112,117.90x = 167,982.45 × 72,654.70
  4. Step 4: Simplify right side
    112,117.90x = 12,204,714,510.02
  5. Step 5: Solve for x
    x = 12,204,714,510.02/112,117.90
  6. Step 6: Final answer
    x = 108,856.07

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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.