Home / 158,589.18-218,854.62-90,615.06

Finding the Fourth Proportional to 158,589.18, 218,854.62 and 90,615.06

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Solution

The fourth proportional to 158,589.18, 218,854.62 and 90,615.06 is: 125,049.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,589.18 : 218,854.62 = 90,615.06 : x
  2. Step 2: Convert to fraction form
    158,589.18/218,854.62 = 90,615.06/x
  3. Step 3: Cross multiply
    158,589.18x = 218,854.62 × 90,615.06
  4. Step 4: Simplify right side
    158,589.18x = 19,831,524,522.58
  5. Step 5: Solve for x
    x = 19,831,524,522.58/158,589.18
  6. Step 6: Final answer
    x = 125,049.67

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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.