Home / 108,827.47-163,143.82-42,251.78

Finding the Fourth Proportional to 108,827.47, 163,143.82 and 42,251.78

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Solution

The fourth proportional to 108,827.47, 163,143.82 and 42,251.78 is: 63,339.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,827.47 : 163,143.82 = 42,251.78 : x
  2. Step 2: Convert to fraction form
    108,827.47/163,143.82 = 42,251.78/x
  3. Step 3: Cross multiply
    108,827.47x = 163,143.82 × 42,251.78
  4. Step 4: Simplify right side
    108,827.47x = 6,893,116,333.99
  5. Step 5: Solve for x
    x = 6,893,116,333.99/108,827.47
  6. Step 6: Final answer
    x = 63,339.85

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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.