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Finding the Fourth Proportional to 108,888.71, 150,240.12 and 63,540.80

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Solution

The fourth proportional to 108,888.71, 150,240.12 and 63,540.80 is: 87,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,888.71 : 150,240.12 = 63,540.80 : x
  2. Step 2: Convert to fraction form
    108,888.71/150,240.12 = 63,540.80/x
  3. Step 3: Cross multiply
    108,888.71x = 150,240.12 × 63,540.80
  4. Step 4: Simplify right side
    108,888.71x = 9,546,376,990.82
  5. Step 5: Solve for x
    x = 9,546,376,990.82/108,888.71
  6. Step 6: Final answer
    x = 87,670.96

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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.