Home / 91,155.80-136,733.70-82,845.20

Finding the Fourth Proportional to 91,155.80, 136,733.70 and 82,845.20

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Solution

The fourth proportional to 91,155.80, 136,733.70 and 82,845.20 is: 124,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.80 : 136,733.70 = 82,845.20 : x
  2. Step 2: Convert to fraction form
    91,155.80/136,733.70 = 82,845.20/x
  3. Step 3: Cross multiply
    91,155.80x = 136,733.70 × 82,845.20
  4. Step 4: Simplify right side
    91,155.80x = 11,327,730,723.24
  5. Step 5: Solve for x
    x = 11,327,730,723.24/91,155.80
  6. Step 6: Final answer
    x = 124,267.80

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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.