Home / 143,573.39-198,127.91-79,909.82

Finding the Fourth Proportional to 143,573.39, 198,127.91 and 79,909.82

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Solution

The fourth proportional to 143,573.39, 198,127.91 and 79,909.82 is: 110,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,573.39 : 198,127.91 = 79,909.82 : x
  2. Step 2: Convert to fraction form
    143,573.39/198,127.91 = 79,909.82/x
  3. Step 3: Cross multiply
    143,573.39x = 198,127.91 × 79,909.82
  4. Step 4: Simplify right side
    143,573.39x = 15,832,365,127.70
  5. Step 5: Solve for x
    x = 15,832,365,127.70/143,573.39
  6. Step 6: Final answer
    x = 110,273.67

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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.