Home / 112,527.12-155,234.56-80,268.87

Finding the Fourth Proportional to 112,527.12, 155,234.56 and 80,268.87

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Solution

The fourth proportional to 112,527.12, 155,234.56 and 80,268.87 is: 110,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,527.12 : 155,234.56 = 80,268.87 : x
  2. Step 2: Convert to fraction form
    112,527.12/155,234.56 = 80,268.87/x
  3. Step 3: Cross multiply
    112,527.12x = 155,234.56 × 80,268.87
  4. Step 4: Simplify right side
    112,527.12x = 12,460,502,716.15
  5. Step 5: Solve for x
    x = 12,460,502,716.15/112,527.12
  6. Step 6: Final answer
    x = 110,733.33

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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.