Home / 137,476.17-189,729.34-80,112.38

Finding the Fourth Proportional to 137,476.17, 189,729.34 and 80,112.38

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Solution

The fourth proportional to 137,476.17, 189,729.34 and 80,112.38 is: 110,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,476.17 : 189,729.34 = 80,112.38 : x
  2. Step 2: Convert to fraction form
    137,476.17/189,729.34 = 80,112.38/x
  3. Step 3: Cross multiply
    137,476.17x = 189,729.34 × 80,112.38
  4. Step 4: Simplify right side
    137,476.17x = 15,199,667,834.30
  5. Step 5: Solve for x
    x = 15,199,667,834.30/137,476.17
  6. Step 6: Final answer
    x = 110,562.20

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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.