Home / 126,772.43-190,127.51-42,530.70

Finding the Fourth Proportional to 126,772.43, 190,127.51 and 42,530.70

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Solution

The fourth proportional to 126,772.43, 190,127.51 and 42,530.70 is: 63,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,772.43 : 190,127.51 = 42,530.70 : x
  2. Step 2: Convert to fraction form
    126,772.43/190,127.51 = 42,530.70/x
  3. Step 3: Cross multiply
    126,772.43x = 190,127.51 × 42,530.70
  4. Step 4: Simplify right side
    126,772.43x = 8,086,255,876.90
  5. Step 5: Solve for x
    x = 8,086,255,876.90/126,772.43
  6. Step 6: Final answer
    x = 63,785.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.