Home / 137,069.82-189,077.49-80,470.26

Finding the Fourth Proportional to 137,069.82, 189,077.49 and 80,470.26

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Solution

The fourth proportional to 137,069.82, 189,077.49 and 80,470.26 is: 111,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,069.82 : 189,077.49 = 80,470.26 : x
  2. Step 2: Convert to fraction form
    137,069.82/189,077.49 = 80,470.26/x
  3. Step 3: Cross multiply
    137,069.82x = 189,077.49 × 80,470.26
  4. Step 4: Simplify right side
    137,069.82x = 15,215,114,780.45
  5. Step 5: Solve for x
    x = 15,215,114,780.45/137,069.82
  6. Step 6: Final answer
    x = 111,002.66

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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.