Home / 127,498.87-191,073.34-80,667.91

Finding the Fourth Proportional to 127,498.87, 191,073.34 and 80,667.91

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Solution

The fourth proportional to 127,498.87, 191,073.34 and 80,667.91 is: 120,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,498.87 : 191,073.34 = 80,667.91 : x
  2. Step 2: Convert to fraction form
    127,498.87/191,073.34 = 80,667.91/x
  3. Step 3: Cross multiply
    127,498.87x = 191,073.34 × 80,667.91
  4. Step 4: Simplify right side
    127,498.87x = 15,413,485,635.81
  5. Step 5: Solve for x
    x = 15,413,485,635.81/127,498.87
  6. Step 6: Final answer
    x = 120,891.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.