Home / 100,191.03-138,274.44-63,893.66

Finding the Fourth Proportional to 100,191.03, 138,274.44 and 63,893.66

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Solution

The fourth proportional to 100,191.03, 138,274.44 and 63,893.66 is: 88,180.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,191.03 : 138,274.44 = 63,893.66 : x
  2. Step 2: Convert to fraction form
    100,191.03/138,274.44 = 63,893.66/x
  3. Step 3: Cross multiply
    100,191.03x = 138,274.44 × 63,893.66
  4. Step 4: Simplify right side
    100,191.03x = 8,834,860,262.27
  5. Step 5: Solve for x
    x = 8,834,860,262.27/100,191.03
  6. Step 6: Final answer
    x = 88,180.16

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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.