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Finding the Fourth Proportional to 88,932.40, 133,398.60 and 81,674.80

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Solution

The fourth proportional to 88,932.40, 133,398.60 and 81,674.80 is: 122,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,932.40 : 133,398.60 = 81,674.80 : x
  2. Step 2: Convert to fraction form
    88,932.40/133,398.60 = 81,674.80/x
  3. Step 3: Cross multiply
    88,932.40x = 133,398.60 × 81,674.80
  4. Step 4: Simplify right side
    88,932.40x = 10,895,303,975.28
  5. Step 5: Solve for x
    x = 10,895,303,975.28/88,932.40
  6. Step 6: Final answer
    x = 122,512.20

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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.