Home / 88,221.52-121,634.76-73,691.74

Finding the Fourth Proportional to 88,221.52, 121,634.76 and 73,691.74

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Solution

The fourth proportional to 88,221.52, 121,634.76 and 73,691.74 is: 101,601.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,221.52 : 121,634.76 = 73,691.74 : x
  2. Step 2: Convert to fraction form
    88,221.52/121,634.76 = 73,691.74/x
  3. Step 3: Cross multiply
    88,221.52x = 121,634.76 × 73,691.74
  4. Step 4: Simplify right side
    88,221.52x = 8,963,477,108.88
  5. Step 5: Solve for x
    x = 8,963,477,108.88/88,221.52
  6. Step 6: Final answer
    x = 101,601.93

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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.