Home / 129,981.72-194,983.53-45,733.02

Finding the Fourth Proportional to 129,981.72, 194,983.53 and 45,733.02

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Solution

The fourth proportional to 129,981.72, 194,983.53 and 45,733.02 is: 68,603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.72 : 194,983.53 = 45,733.02 : x
  2. Step 2: Convert to fraction form
    129,981.72/194,983.53 = 45,733.02/x
  3. Step 3: Cross multiply
    129,981.72x = 194,983.53 × 45,733.02
  4. Step 4: Simplify right side
    129,981.72x = 8,917,185,677.16
  5. Step 5: Solve for x
    x = 8,917,185,677.16/129,981.72
  6. Step 6: Final answer
    x = 68,603.38

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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.