Home / 100,241.13-138,332.76-55,529.13

Finding the Fourth Proportional to 100,241.13, 138,332.76 and 55,529.13

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Solution

The fourth proportional to 100,241.13, 138,332.76 and 55,529.13 is: 76,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,241.13 : 138,332.76 = 55,529.13 : x
  2. Step 2: Convert to fraction form
    100,241.13/138,332.76 = 55,529.13/x
  3. Step 3: Cross multiply
    100,241.13x = 138,332.76 × 55,529.13
  4. Step 4: Simplify right side
    100,241.13x = 7,681,497,813.30
  5. Step 5: Solve for x
    x = 7,681,497,813.30/100,241.13
  6. Step 6: Final answer
    x = 76,630.20

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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.