Home / 158,376.95-218,560.25-86,759.55

Finding the Fourth Proportional to 158,376.95, 218,560.25 and 86,759.55

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Solution

The fourth proportional to 158,376.95, 218,560.25 and 86,759.55 is: 119,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,376.95 : 218,560.25 = 86,759.55 : x
  2. Step 2: Convert to fraction form
    158,376.95/218,560.25 = 86,759.55/x
  3. Step 3: Cross multiply
    158,376.95x = 218,560.25 × 86,759.55
  4. Step 4: Simplify right side
    158,376.95x = 18,962,188,504.09
  5. Step 5: Solve for x
    x = 18,962,188,504.09/158,376.95
  6. Step 6: Final answer
    x = 119,728.21

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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.