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Finding the Fourth Proportional to 126,141.92, 173,894.97 and 99,237.71

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Solution

The fourth proportional to 126,141.92, 173,894.97 and 99,237.71 is: 136,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,141.92 : 173,894.97 = 99,237.71 : x
  2. Step 2: Convert to fraction form
    126,141.92/173,894.97 = 99,237.71/x
  3. Step 3: Cross multiply
    126,141.92x = 173,894.97 × 99,237.71
  4. Step 4: Simplify right side
    126,141.92x = 17,256,938,603.32
  5. Step 5: Solve for x
    x = 17,256,938,603.32/126,141.92
  6. Step 6: Final answer
    x = 136,805.74

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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.