Home / 131,115.12-196,672.86-56,186.66

Finding the Fourth Proportional to 131,115.12, 196,672.86 and 56,186.66

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Solution

The fourth proportional to 131,115.12, 196,672.86 and 56,186.66 is: 84,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,115.12 : 196,672.86 = 56,186.66 : x
  2. Step 2: Convert to fraction form
    131,115.12/196,672.86 = 56,186.66/x
  3. Step 3: Cross multiply
    131,115.12x = 196,672.86 × 56,186.66
  4. Step 4: Simplify right side
    131,115.12x = 11,050,391,116.05
  5. Step 5: Solve for x
    x = 11,050,391,116.05/131,115.12
  6. Step 6: Final answer
    x = 84,280.07

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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.