Home / 139,904.52-193,062.62-76,240.96

Finding the Fourth Proportional to 139,904.52, 193,062.62 and 76,240.96

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Solution

The fourth proportional to 139,904.52, 193,062.62 and 76,240.96 is: 105,209.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,904.52 : 193,062.62 = 76,240.96 : x
  2. Step 2: Convert to fraction form
    139,904.52/193,062.62 = 76,240.96/x
  3. Step 3: Cross multiply
    139,904.52x = 193,062.62 × 76,240.96
  4. Step 4: Simplify right side
    139,904.52x = 14,719,279,488.92
  5. Step 5: Solve for x
    x = 14,719,279,488.92/139,904.52
  6. Step 6: Final answer
    x = 105,209.46

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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.