Home / 158,245.55-218,382.73-86,625.40

Finding the Fourth Proportional to 158,245.55, 218,382.73 and 86,625.40

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Solution

The fourth proportional to 158,245.55, 218,382.73 and 86,625.40 is: 119,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,245.55 : 218,382.73 = 86,625.40 : x
  2. Step 2: Convert to fraction form
    158,245.55/218,382.73 = 86,625.40/x
  3. Step 3: Cross multiply
    158,245.55x = 218,382.73 × 86,625.40
  4. Step 4: Simplify right side
    158,245.55x = 18,917,491,473.56
  5. Step 5: Solve for x
    x = 18,917,491,473.56/158,245.55
  6. Step 6: Final answer
    x = 119,545.17

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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.