Home / 131,147.18-196,720.31-56,218.74

Finding the Fourth Proportional to 131,147.18, 196,720.31 and 56,218.74

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Solution

The fourth proportional to 131,147.18, 196,720.31 and 56,218.74 is: 84,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,147.18 : 196,720.31 = 56,218.74 : x
  2. Step 2: Convert to fraction form
    131,147.18/196,720.31 = 56,218.74/x
  3. Step 3: Cross multiply
    131,147.18x = 196,720.31 × 56,218.74
  4. Step 4: Simplify right side
    131,147.18x = 11,059,368,470.01
  5. Step 5: Solve for x
    x = 11,059,368,470.01/131,147.18
  6. Step 6: Final answer
    x = 84,327.91

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1.5x scale

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.