Home / 158,376.60-218,559.75-86,759.19

Finding the Fourth Proportional to 158,376.60, 218,559.75 and 86,759.19

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Solution

The fourth proportional to 158,376.60, 218,559.75 and 86,759.19 is: 119,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,376.60 : 218,559.75 = 86,759.19 : x
  2. Step 2: Convert to fraction form
    158,376.60/218,559.75 = 86,759.19/x
  3. Step 3: Cross multiply
    158,376.60x = 218,559.75 × 86,759.19
  4. Step 4: Simplify right side
    158,376.60x = 18,962,066,876.60
  5. Step 5: Solve for x
    x = 18,962,066,876.60/158,376.60
  6. Step 6: Final answer
    x = 119,727.71

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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.