Home / 108,838.15-163,215.20-42,269.29

Finding the Fourth Proportional to 108,838.15, 163,215.20 and 42,269.29

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Solution

The fourth proportional to 108,838.15, 163,215.20 and 42,269.29 is: 63,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,838.15 : 163,215.20 = 42,269.29 : x
  2. Step 2: Convert to fraction form
    108,838.15/163,215.20 = 42,269.29/x
  3. Step 3: Cross multiply
    108,838.15x = 163,215.20 × 42,269.29
  4. Step 4: Simplify right side
    108,838.15x = 6,898,989,593.79
  5. Step 5: Solve for x
    x = 6,898,989,593.79/108,838.15
  6. Step 6: Final answer
    x = 63,387.60

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1.5x scale

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.