Home / 100,444.28-138,614.82-55,126.48

Finding the Fourth Proportional to 100,444.28, 138,614.82 and 55,126.48

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Solution

The fourth proportional to 100,444.28, 138,614.82 and 55,126.48 is: 76,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,444.28 : 138,614.82 = 55,126.48 : x
  2. Step 2: Convert to fraction form
    100,444.28/138,614.82 = 55,126.48/x
  3. Step 3: Cross multiply
    100,444.28x = 138,614.82 × 55,126.48
  4. Step 4: Simplify right side
    100,444.28x = 7,641,347,102.43
  5. Step 5: Solve for x
    x = 7,641,347,102.43/100,444.28
  6. Step 6: Final answer
    x = 76,075.48

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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.