Home / 107,488.80-161,306.10-69,957.45

Finding the Fourth Proportional to 107,488.80, 161,306.10 and 69,957.45

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Solution

The fourth proportional to 107,488.80, 161,306.10 and 69,957.45 is: 104,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,488.80 : 161,306.10 = 69,957.45 : x
  2. Step 2: Convert to fraction form
    107,488.80/161,306.10 = 69,957.45/x
  3. Step 3: Cross multiply
    107,488.80x = 161,306.10 × 69,957.45
  4. Step 4: Simplify right side
    107,488.80x = 11,284,563,425.45
  5. Step 5: Solve for x
    x = 11,284,563,425.45/107,488.80
  6. Step 6: Final answer
    x = 104,983.62

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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.