Home / 143,589.33-198,149.90-79,925.76

Finding the Fourth Proportional to 143,589.33, 198,149.90 and 79,925.76

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Solution

The fourth proportional to 143,589.33, 198,149.90 and 79,925.76 is: 110,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,589.33 : 198,149.90 = 79,925.76 : x
  2. Step 2: Convert to fraction form
    143,589.33/198,149.90 = 79,925.76/x
  3. Step 3: Cross multiply
    143,589.33x = 198,149.90 × 79,925.76
  4. Step 4: Simplify right side
    143,589.33x = 15,837,280,360.67
  5. Step 5: Solve for x
    x = 15,837,280,360.67/143,589.33
  6. Step 6: Final answer
    x = 110,295.67

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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.