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Finding the Fourth Proportional to 111,001.80, 166,502.70 and 54,868.80

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Solution

The fourth proportional to 111,001.80, 166,502.70 and 54,868.80 is: 82,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.80 : 166,502.70 = 54,868.80 : x
  2. Step 2: Convert to fraction form
    111,001.80/166,502.70 = 54,868.80/x
  3. Step 3: Cross multiply
    111,001.80x = 166,502.70 × 54,868.80
  4. Step 4: Simplify right side
    111,001.80x = 9,135,803,345.76
  5. Step 5: Solve for x
    x = 9,135,803,345.76/111,001.80
  6. Step 6: Final answer
    x = 82,303.20

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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.