Home / 158,475.96-218,697.66-86,856.60

Finding the Fourth Proportional to 158,475.96, 218,697.66 and 86,856.60

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Solution

The fourth proportional to 158,475.96, 218,697.66 and 86,856.60 is: 119,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,475.96 : 218,697.66 = 86,856.60 : x
  2. Step 2: Convert to fraction form
    158,475.96/218,697.66 = 86,856.60/x
  3. Step 3: Cross multiply
    158,475.96x = 218,697.66 × 86,856.60
  4. Step 4: Simplify right side
    158,475.96x = 18,995,335,175.56
  5. Step 5: Solve for x
    x = 18,995,335,175.56/158,475.96
  6. Step 6: Final answer
    x = 119,862.57

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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.