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Finding the Fourth Proportional to 109,233.75, 150,742.62 and 63,920.45

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Solution

The fourth proportional to 109,233.75, 150,742.62 and 63,920.45 is: 88,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,233.75 : 150,742.62 = 63,920.45 : x
  2. Step 2: Convert to fraction form
    109,233.75/150,742.62 = 63,920.45/x
  3. Step 3: Cross multiply
    109,233.75x = 150,742.62 × 63,920.45
  4. Step 4: Simplify right side
    109,233.75x = 9,635,536,104.58
  5. Step 5: Solve for x
    x = 9,635,536,104.58/109,233.75
  6. Step 6: Final answer
    x = 88,210.25

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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.