Home / 108,143.78-149,236.82-60,397.80

Finding the Fourth Proportional to 108,143.78, 149,236.82 and 60,397.80

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Solution

The fourth proportional to 108,143.78, 149,236.82 and 60,397.80 is: 83,348.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,143.78 : 149,236.82 = 60,397.80 : x
  2. Step 2: Convert to fraction form
    108,143.78/149,236.82 = 60,397.80/x
  3. Step 3: Cross multiply
    108,143.78x = 149,236.82 × 60,397.80
  4. Step 4: Simplify right side
    108,143.78x = 9,013,575,607.00
  5. Step 5: Solve for x
    x = 9,013,575,607.00/108,143.78
  6. Step 6: Final answer
    x = 83,348.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.