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Finding the Fourth Proportional to 158,453.60, 218,672.00 and 90,481.64

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Solution

The fourth proportional to 158,453.60, 218,672.00 and 90,481.64 is: 124,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,453.60 : 218,672.00 = 90,481.64 : x
  2. Step 2: Convert to fraction form
    158,453.60/218,672.00 = 90,481.64/x
  3. Step 3: Cross multiply
    158,453.60x = 218,672.00 × 90,481.64
  4. Step 4: Simplify right side
    158,453.60x = 19,785,799,636.31
  5. Step 5: Solve for x
    x = 19,785,799,636.31/158,453.60
  6. Step 6: Final answer
    x = 124,868.10

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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.