Home / 88,128.02-132,192.12-72,512.84

Finding the Fourth Proportional to 88,128.02, 132,192.12 and 72,512.84

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Solution

The fourth proportional to 88,128.02, 132,192.12 and 72,512.84 is: 108,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128.02 : 132,192.12 = 72,512.84 : x
  2. Step 2: Convert to fraction form
    88,128.02/132,192.12 = 72,512.84/x
  3. Step 3: Cross multiply
    88,128.02x = 132,192.12 × 72,512.84
  4. Step 4: Simplify right side
    88,128.02x = 9,585,626,046.82
  5. Step 5: Solve for x
    x = 9,585,626,046.82/88,128.02
  6. Step 6: Final answer
    x = 108,769.33

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1.5x scale

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.