Home / 108,169.50-149,176.94-90,080.12

Finding the Fourth Proportional to 108,169.50, 149,176.94 and 90,080.12

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Solution

The fourth proportional to 108,169.50, 149,176.94 and 90,080.12 is: 124,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,169.50 : 149,176.94 = 90,080.12 : x
  2. Step 2: Convert to fraction form
    108,169.50/149,176.94 = 90,080.12/x
  3. Step 3: Cross multiply
    108,169.50x = 149,176.94 × 90,080.12
  4. Step 4: Simplify right side
    108,169.50x = 13,437,877,254.58
  5. Step 5: Solve for x
    x = 13,437,877,254.58/108,169.50
  6. Step 6: Final answer
    x = 124,229.82

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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.