Home / 129,870.47-194,811.28-51,001.79

Finding the Fourth Proportional to 129,870.47, 194,811.28 and 51,001.79

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Solution

The fourth proportional to 129,870.47, 194,811.28 and 51,001.79 is: 76,504.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,870.47 : 194,811.28 = 51,001.79 : x
  2. Step 2: Convert to fraction form
    129,870.47/194,811.28 = 51,001.79/x
  3. Step 3: Cross multiply
    129,870.47x = 194,811.28 × 51,001.79
  4. Step 4: Simplify right side
    129,870.47x = 9,935,722,890.63
  5. Step 5: Solve for x
    x = 9,935,722,890.63/129,870.47
  6. Step 6: Final answer
    x = 76,504.86

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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.