Home / 137,476.26-189,701.46-80,127.72

Finding the Fourth Proportional to 137,476.26, 189,701.46 and 80,127.72

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Solution

The fourth proportional to 137,476.26, 189,701.46 and 80,127.72 is: 110,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,476.26 : 189,701.46 = 80,127.72 : x
  2. Step 2: Convert to fraction form
    137,476.26/189,701.46 = 80,127.72/x
  3. Step 3: Cross multiply
    137,476.26x = 189,701.46 × 80,127.72
  4. Step 4: Simplify right side
    137,476.26x = 15,200,345,470.47
  5. Step 5: Solve for x
    x = 15,200,345,470.47/137,476.26
  6. Step 6: Final answer
    x = 110,567.06

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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.