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Finding the Fourth Proportional to 70,168.68, 105,253.08 and 19,565.70

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Solution

The fourth proportional to 70,168.68, 105,253.08 and 19,565.70 is: 29,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,168.68 : 105,253.08 = 19,565.70 : x
  2. Step 2: Convert to fraction form
    70,168.68/105,253.08 = 19,565.70/x
  3. Step 3: Cross multiply
    70,168.68x = 105,253.08 × 19,565.70
  4. Step 4: Simplify right side
    70,168.68x = 2,059,350,187.36
  5. Step 5: Solve for x
    x = 2,059,350,187.36/70,168.68
  6. Step 6: Final answer
    x = 29,348.57

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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.