Home / 107,388.20-148,211.87-77,273.21

Finding the Fourth Proportional to 107,388.20, 148,211.87 and 77,273.21

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Solution

The fourth proportional to 107,388.20, 148,211.87 and 77,273.21 is: 106,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,388.20 : 148,211.87 = 77,273.21 : x
  2. Step 2: Convert to fraction form
    107,388.20/148,211.87 = 77,273.21/x
  3. Step 3: Cross multiply
    107,388.20x = 148,211.87 × 77,273.21
  4. Step 4: Simplify right side
    107,388.20x = 11,452,806,020.76
  5. Step 5: Solve for x
    x = 11,452,806,020.76/107,388.20
  6. Step 6: Final answer
    x = 106,648.65

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1.5x scale

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.