Home / 137,454.08-189,429.77-107,191.47

Finding the Fourth Proportional to 137,454.08, 189,429.77 and 107,191.47

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Solution

The fourth proportional to 137,454.08, 189,429.77 and 107,191.47 is: 147,723.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,454.08 : 189,429.77 = 107,191.47 : x
  2. Step 2: Convert to fraction form
    137,454.08/189,429.77 = 107,191.47/x
  3. Step 3: Cross multiply
    137,454.08x = 189,429.77 × 107,191.47
  4. Step 4: Simplify right side
    137,454.08x = 20,305,255,508.06
  5. Step 5: Solve for x
    x = 20,305,255,508.06/137,454.08
  6. Step 6: Final answer
    x = 147,723.92

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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.