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Finding the Fourth Proportional to 131,527.80, 197,218.80 and 56,635.20

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Solution

The fourth proportional to 131,527.80, 197,218.80 and 56,635.20 is: 84,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,527.80 : 197,218.80 = 56,635.20 : x
  2. Step 2: Convert to fraction form
    131,527.80/197,218.80 = 56,635.20/x
  3. Step 3: Cross multiply
    131,527.80x = 197,218.80 × 56,635.20
  4. Step 4: Simplify right side
    131,527.80x = 11,169,526,181.76
  5. Step 5: Solve for x
    x = 11,169,526,181.76/131,527.80
  6. Step 6: Final answer
    x = 84,921.41

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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.