Home / 108,665.12-150,101.98-90,575.22

Finding the Fourth Proportional to 108,665.12, 150,101.98 and 90,575.22

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Solution

The fourth proportional to 108,665.12, 150,101.98 and 90,575.22 is: 125,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,665.12 : 150,101.98 = 90,575.22 : x
  2. Step 2: Convert to fraction form
    108,665.12/150,101.98 = 90,575.22/x
  3. Step 3: Cross multiply
    108,665.12x = 150,101.98 × 90,575.22
  4. Step 4: Simplify right side
    108,665.12x = 13,595,520,197.38
  5. Step 5: Solve for x
    x = 13,595,520,197.38/108,665.12
  6. Step 6: Final answer
    x = 125,113.93

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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.