Home / 108,432.72-162,639.48-38,308.56

Finding the Fourth Proportional to 108,432.72, 162,639.48 and 38,308.56

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Solution

The fourth proportional to 108,432.72, 162,639.48 and 38,308.56 is: 57,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,432.72 : 162,639.48 = 38,308.56 : x
  2. Step 2: Convert to fraction form
    108,432.72/162,639.48 = 38,308.56/x
  3. Step 3: Cross multiply
    108,432.72x = 162,639.48 × 38,308.56
  4. Step 4: Simplify right side
    108,432.72x = 6,230,484,277.95
  5. Step 5: Solve for x
    x = 6,230,484,277.95/108,432.72
  6. Step 6: Final answer
    x = 57,459.45

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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.