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Finding the Fourth Proportional to 101,966.61, 140,364.59 and 88,458.33

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Solution

The fourth proportional to 101,966.61, 140,364.59 and 88,458.33 is: 121,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,966.61 : 140,364.59 = 88,458.33 : x
  2. Step 2: Convert to fraction form
    101,966.61/140,364.59 = 88,458.33/x
  3. Step 3: Cross multiply
    101,966.61x = 140,364.59 × 88,458.33
  4. Step 4: Simplify right side
    101,966.61x = 12,416,416,780.24
  5. Step 5: Solve for x
    x = 12,416,416,780.24/101,966.61
  6. Step 6: Final answer
    x = 121,769.44

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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.