Home / 79,132.40-109,253.70-70,619.96

Finding the Fourth Proportional to 79,132.40, 109,253.70 and 70,619.96

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Solution

The fourth proportional to 79,132.40, 109,253.70 and 70,619.96 is: 97,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,132.40 : 109,253.70 = 70,619.96 : x
  2. Step 2: Convert to fraction form
    79,132.40/109,253.70 = 70,619.96/x
  3. Step 3: Cross multiply
    79,132.40x = 109,253.70 × 70,619.96
  4. Step 4: Simplify right side
    79,132.40x = 7,715,491,923.85
  5. Step 5: Solve for x
    x = 7,715,491,923.85/79,132.40
  6. Step 6: Final answer
    x = 97,501.05

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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.