Home / 108,948.94-163,381.29-42,380.08

Finding the Fourth Proportional to 108,948.94, 163,381.29 and 42,380.08

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Solution

The fourth proportional to 108,948.94, 163,381.29 and 42,380.08 is: 63,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,948.94 : 163,381.29 = 42,380.08 : x
  2. Step 2: Convert to fraction form
    108,948.94/163,381.29 = 42,380.08/x
  3. Step 3: Cross multiply
    108,948.94x = 163,381.29 × 42,380.08
  4. Step 4: Simplify right side
    108,948.94x = 6,924,112,140.70
  5. Step 5: Solve for x
    x = 6,924,112,140.70/108,948.94
  6. Step 6: Final answer
    x = 63,553.74

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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.