Home / 99,266.24-136,986.72-54,555.20

Finding the Fourth Proportional to 99,266.24, 136,986.72 and 54,555.20

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Solution

The fourth proportional to 99,266.24, 136,986.72 and 54,555.20 is: 75,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,266.24 : 136,986.72 = 54,555.20 : x
  2. Step 2: Convert to fraction form
    99,266.24/136,986.72 = 54,555.20/x
  3. Step 3: Cross multiply
    99,266.24x = 136,986.72 × 54,555.20
  4. Step 4: Simplify right side
    99,266.24x = 7,473,337,906.94
  5. Step 5: Solve for x
    x = 7,473,337,906.94/99,266.24
  6. Step 6: Final answer
    x = 75,285.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.