Home / 126,311.40-189,426.09-42,048.93

Finding the Fourth Proportional to 126,311.40, 189,426.09 and 42,048.93

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Solution

The fourth proportional to 126,311.40, 189,426.09 and 42,048.93 is: 63,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,311.40 : 189,426.09 = 42,048.93 : x
  2. Step 2: Convert to fraction form
    126,311.40/189,426.09 = 42,048.93/x
  3. Step 3: Cross multiply
    126,311.40x = 189,426.09 × 42,048.93
  4. Step 4: Simplify right side
    126,311.40x = 7,965,164,398.58
  5. Step 5: Solve for x
    x = 7,965,164,398.58/126,311.40
  6. Step 6: Final answer
    x = 63,059.74

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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.