Home / 108,560.40-162,856.80-38,434.20

Finding the Fourth Proportional to 108,560.40, 162,856.80 and 38,434.20

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Solution

The fourth proportional to 108,560.40, 162,856.80 and 38,434.20 is: 57,657.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,560.40 : 162,856.80 = 38,434.20 : x
  2. Step 2: Convert to fraction form
    108,560.40/162,856.80 = 38,434.20/x
  3. Step 3: Cross multiply
    108,560.40x = 162,856.80 × 38,434.20
  4. Step 4: Simplify right side
    108,560.40x = 6,259,270,822.56
  5. Step 5: Solve for x
    x = 6,259,270,822.56/108,560.40
  6. Step 6: Final answer
    x = 57,657.04

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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.