Home / 82,135.98-113,244.96-68,543.61

Finding the Fourth Proportional to 82,135.98, 113,244.96 and 68,543.61

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Solution

The fourth proportional to 82,135.98, 113,244.96 and 68,543.61 is: 94,504.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,135.98 : 113,244.96 = 68,543.61 : x
  2. Step 2: Convert to fraction form
    82,135.98/113,244.96 = 68,543.61/x
  3. Step 3: Cross multiply
    82,135.98x = 113,244.96 × 68,543.61
  4. Step 4: Simplify right side
    82,135.98x = 7,762,218,372.71
  5. Step 5: Solve for x
    x = 7,762,218,372.71/82,135.98
  6. Step 6: Final answer
    x = 94,504.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.