Home / 126,454.16-189,710.80-67,276.38

Finding the Fourth Proportional to 126,454.16, 189,710.80 and 67,276.38

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Solution

The fourth proportional to 126,454.16, 189,710.80 and 67,276.38 is: 100,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,454.16 : 189,710.80 = 67,276.38 : x
  2. Step 2: Convert to fraction form
    126,454.16/189,710.80 = 67,276.38/x
  3. Step 3: Cross multiply
    126,454.16x = 189,710.80 × 67,276.38
  4. Step 4: Simplify right side
    126,454.16x = 12,763,055,870.90
  5. Step 5: Solve for x
    x = 12,763,055,870.90/126,454.16
  6. Step 6: Final answer
    x = 100,930.30

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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.