Home / 129,983.23-194,985.78-45,734.52

Finding the Fourth Proportional to 129,983.23, 194,985.78 and 45,734.52

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Solution

The fourth proportional to 129,983.23, 194,985.78 and 45,734.52 is: 68,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,983.23 : 194,985.78 = 45,734.52 : x
  2. Step 2: Convert to fraction form
    129,983.23/194,985.78 = 45,734.52/x
  3. Step 3: Cross multiply
    129,983.23x = 194,985.78 × 45,734.52
  4. Step 4: Simplify right side
    129,983.23x = 8,917,581,055.13
  5. Step 5: Solve for x
    x = 8,917,581,055.13/129,983.23
  6. Step 6: Final answer
    x = 68,605.63

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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.