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Finding the Fourth Proportional to 110,800.80, 166,168.80 and 39,715.20

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Solution

The fourth proportional to 110,800.80, 166,168.80 and 39,715.20 is: 59,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,800.80 : 166,168.80 = 39,715.20 : x
  2. Step 2: Convert to fraction form
    110,800.80/166,168.80 = 39,715.20/x
  3. Step 3: Cross multiply
    110,800.80x = 166,168.80 × 39,715.20
  4. Step 4: Simplify right side
    110,800.80x = 6,599,427,125.76
  5. Step 5: Solve for x
    x = 6,599,427,125.76/110,800.80
  6. Step 6: Final answer
    x = 59,561.19

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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.