Home / 126,042.32-173,699.15-90,170.06

Finding the Fourth Proportional to 126,042.32, 173,699.15 and 90,170.06

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Solution

The fourth proportional to 126,042.32, 173,699.15 and 90,170.06 is: 124,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,042.32 : 173,699.15 = 90,170.06 : x
  2. Step 2: Convert to fraction form
    126,042.32/173,699.15 = 90,170.06/x
  3. Step 3: Cross multiply
    126,042.32x = 173,699.15 × 90,170.06
  4. Step 4: Simplify right side
    126,042.32x = 15,662,462,134.38
  5. Step 5: Solve for x
    x = 15,662,462,134.38/126,042.32
  6. Step 6: Final answer
    x = 124,263.52

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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.