Home / 126,349.26-189,460.42-42,079.64

Finding the Fourth Proportional to 126,349.26, 189,460.42 and 42,079.64

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Solution

The fourth proportional to 126,349.26, 189,460.42 and 42,079.64 is: 63,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,349.26 : 189,460.42 = 42,079.64 : x
  2. Step 2: Convert to fraction form
    126,349.26/189,460.42 = 42,079.64/x
  3. Step 3: Cross multiply
    126,349.26x = 189,460.42 × 42,079.64
  4. Step 4: Simplify right side
    126,349.26x = 7,972,426,267.85
  5. Step 5: Solve for x
    x = 7,972,426,267.85/126,349.26
  6. Step 6: Final answer
    x = 63,098.32

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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.