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Finding the Fourth Proportional to 100,193.03, 138,277.20 and 63,895.66

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Solution

The fourth proportional to 100,193.03, 138,277.20 and 63,895.66 is: 88,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,193.03 : 138,277.20 = 63,895.66 : x
  2. Step 2: Convert to fraction form
    100,193.03/138,277.20 = 63,895.66/x
  3. Step 3: Cross multiply
    100,193.03x = 138,277.20 × 63,895.66
  4. Step 4: Simplify right side
    100,193.03x = 8,835,312,956.95
  5. Step 5: Solve for x
    x = 8,835,312,956.95/100,193.03
  6. Step 6: Final answer
    x = 88,182.91

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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.