Home / 107,526.80-161,144.40-71,886.80

Finding the Fourth Proportional to 107,526.80, 161,144.40 and 71,886.80

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Solution

The fourth proportional to 107,526.80, 161,144.40 and 71,886.80 is: 107,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,526.80 : 161,144.40 = 71,886.80 : x
  2. Step 2: Convert to fraction form
    107,526.80/161,144.40 = 71,886.80/x
  3. Step 3: Cross multiply
    107,526.80x = 161,144.40 × 71,886.80
  4. Step 4: Simplify right side
    107,526.80x = 11,584,155,253.92
  5. Step 5: Solve for x
    x = 11,584,155,253.92/107,526.80
  6. Step 6: Final answer
    x = 107,732.73

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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.