Home / 108,864.30-163,306.78-42,309.57

Finding the Fourth Proportional to 108,864.30, 163,306.78 and 42,309.57

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Solution

The fourth proportional to 108,864.30, 163,306.78 and 42,309.57 is: 63,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,864.30 : 163,306.78 = 42,309.57 : x
  2. Step 2: Convert to fraction form
    108,864.30/163,306.78 = 42,309.57/x
  3. Step 3: Cross multiply
    108,864.30x = 163,306.78 × 42,309.57
  4. Step 4: Simplify right side
    108,864.30x = 6,909,439,639.88
  5. Step 5: Solve for x
    x = 6,909,439,639.88/108,864.30
  6. Step 6: Final answer
    x = 63,468.37

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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.