Home / 100,098.23-138,135.56-54,776.22

Finding the Fourth Proportional to 100,098.23, 138,135.56 and 54,776.22

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Solution

The fourth proportional to 100,098.23, 138,135.56 and 54,776.22 is: 75,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,098.23 : 138,135.56 = 54,776.22 : x
  2. Step 2: Convert to fraction form
    100,098.23/138,135.56 = 54,776.22/x
  3. Step 3: Cross multiply
    100,098.23x = 138,135.56 × 54,776.22
  4. Step 4: Simplify right side
    100,098.23x = 7,566,543,443.32
  5. Step 5: Solve for x
    x = 7,566,543,443.32/100,098.23
  6. Step 6: Final answer
    x = 75,591.18

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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.