Home / 108,029.18-149,088.75-59,640.72

Finding the Fourth Proportional to 108,029.18, 149,088.75 and 59,640.72

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Solution

The fourth proportional to 108,029.18, 149,088.75 and 59,640.72 is: 82,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,029.18 : 149,088.75 = 59,640.72 : x
  2. Step 2: Convert to fraction form
    108,029.18/149,088.75 = 59,640.72/x
  3. Step 3: Cross multiply
    108,029.18x = 149,088.75 × 59,640.72
  4. Step 4: Simplify right side
    108,029.18x = 8,891,760,393.90
  5. Step 5: Solve for x
    x = 8,891,760,393.90/108,029.18
  6. Step 6: Final answer
    x = 82,308.88

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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.