Home / 158,376.45-218,559.56-86,759.05

Finding the Fourth Proportional to 158,376.45, 218,559.56 and 86,759.05

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Solution

The fourth proportional to 158,376.45, 218,559.56 and 86,759.05 is: 119,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,376.45 : 218,559.56 = 86,759.05 : x
  2. Step 2: Convert to fraction form
    158,376.45/218,559.56 = 86,759.05/x
  3. Step 3: Cross multiply
    158,376.45x = 218,559.56 × 86,759.05
  4. Step 4: Simplify right side
    158,376.45x = 18,962,019,794.02
  5. Step 5: Solve for x
    x = 18,962,019,794.02/158,376.45
  6. Step 6: Final answer
    x = 119,727.52

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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.