Home / 143,999.58-198,719.55-80,337.39

Finding the Fourth Proportional to 143,999.58, 198,719.55 and 80,337.39

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Solution

The fourth proportional to 143,999.58, 198,719.55 and 80,337.39 is: 110,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,999.58 : 198,719.55 = 80,337.39 : x
  2. Step 2: Convert to fraction form
    143,999.58/198,719.55 = 80,337.39/x
  3. Step 3: Cross multiply
    143,999.58x = 198,719.55 × 80,337.39
  4. Step 4: Simplify right side
    143,999.58x = 15,964,609,587.29
  5. Step 5: Solve for x
    x = 15,964,609,587.29/143,999.58
  6. Step 6: Final answer
    x = 110,865.67

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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.