Home / 99,778.20-149,302.80-73,534.20

Finding the Fourth Proportional to 99,778.20, 149,302.80 and 73,534.20

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Solution

The fourth proportional to 99,778.20, 149,302.80 and 73,534.20 is: 110,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778.20 : 149,302.80 = 73,534.20 : x
  2. Step 2: Convert to fraction form
    99,778.20/149,302.80 = 73,534.20/x
  3. Step 3: Cross multiply
    99,778.20x = 149,302.80 × 73,534.20
  4. Step 4: Simplify right side
    99,778.20x = 10,978,861,955.76
  5. Step 5: Solve for x
    x = 10,978,861,955.76/99,778.20
  6. Step 6: Final answer
    x = 110,032.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.