Home / 129,771.72-194,638.14-107,726.76

Finding the Fourth Proportional to 129,771.72, 194,638.14 and 107,726.76

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Solution

The fourth proportional to 129,771.72, 194,638.14 and 107,726.76 is: 161,574.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,771.72 : 194,638.14 = 107,726.76 : x
  2. Step 2: Convert to fraction form
    129,771.72/194,638.14 = 107,726.76/x
  3. Step 3: Cross multiply
    129,771.72x = 194,638.14 × 107,726.76
  4. Step 4: Simplify right side
    129,771.72x = 20,967,736,194.63
  5. Step 5: Solve for x
    x = 20,967,736,194.63/129,771.72
  6. Step 6: Final answer
    x = 161,574.00

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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.