Home / 110,379.20-152,334.40-65,071.56

Finding the Fourth Proportional to 110,379.20, 152,334.40 and 65,071.56

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Solution

The fourth proportional to 110,379.20, 152,334.40 and 65,071.56 is: 89,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,379.20 : 152,334.40 = 65,071.56 : x
  2. Step 2: Convert to fraction form
    110,379.20/152,334.40 = 65,071.56/x
  3. Step 3: Cross multiply
    110,379.20x = 152,334.40 × 65,071.56
  4. Step 4: Simplify right side
    110,379.20x = 9,912,637,049.66
  5. Step 5: Solve for x
    x = 9,912,637,049.66/110,379.20
  6. Step 6: Final answer
    x = 89,805.30

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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.