Home / 108,930.90-163,454.40-42,373.20

Finding the Fourth Proportional to 108,930.90, 163,454.40 and 42,373.20

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Solution

The fourth proportional to 108,930.90, 163,454.40 and 42,373.20 is: 63,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,930.90 : 163,454.40 = 42,373.20 : x
  2. Step 2: Convert to fraction form
    108,930.90/163,454.40 = 42,373.20/x
  3. Step 3: Cross multiply
    108,930.90x = 163,454.40 × 42,373.20
  4. Step 4: Simplify right side
    108,930.90x = 6,926,085,982.08
  5. Step 5: Solve for x
    x = 6,926,085,982.08/108,930.90
  6. Step 6: Final answer
    x = 63,582.38

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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.