Home / 129,188.52-193,687.74-40,392.36

Finding the Fourth Proportional to 129,188.52, 193,687.74 and 40,392.36

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Solution

The fourth proportional to 129,188.52, 193,687.74 and 40,392.36 is: 60,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,188.52 : 193,687.74 = 40,392.36 : x
  2. Step 2: Convert to fraction form
    129,188.52/193,687.74 = 40,392.36/x
  3. Step 3: Cross multiply
    129,188.52x = 193,687.74 × 40,392.36
  4. Step 4: Simplify right side
    129,188.52x = 7,823,504,921.67
  5. Step 5: Solve for x
    x = 7,823,504,921.67/129,188.52
  6. Step 6: Final answer
    x = 60,558.82

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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.