Home / 137,215.52-189,332.47-79,063.19

Finding the Fourth Proportional to 137,215.52, 189,332.47 and 79,063.19

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Solution

The fourth proportional to 137,215.52, 189,332.47 and 79,063.19 is: 109,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,215.52 : 189,332.47 = 79,063.19 : x
  2. Step 2: Convert to fraction form
    137,215.52/189,332.47 = 79,063.19/x
  3. Step 3: Cross multiply
    137,215.52x = 189,332.47 × 79,063.19
  4. Step 4: Simplify right side
    137,215.52x = 14,969,228,910.94
  5. Step 5: Solve for x
    x = 14,969,228,910.94/137,215.52
  6. Step 6: Final answer
    x = 109,092.83

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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.