Home / 108,143.18-149,236.53-60,395.30

Finding the Fourth Proportional to 108,143.18, 149,236.53 and 60,395.30

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Solution

The fourth proportional to 108,143.18, 149,236.53 and 60,395.30 is: 83,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,143.18 : 149,236.53 = 60,395.30 : x
  2. Step 2: Convert to fraction form
    108,143.18/149,236.53 = 60,395.30/x
  3. Step 3: Cross multiply
    108,143.18x = 149,236.53 × 60,395.30
  4. Step 4: Simplify right side
    108,143.18x = 9,013,185,000.31
  5. Step 5: Solve for x
    x = 9,013,185,000.31/108,143.18
  6. Step 6: Final answer
    x = 83,344.92

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1.5x scale

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.