Home / 79,164.14-109,297.40-70,651.70

Finding the Fourth Proportional to 79,164.14, 109,297.40 and 70,651.70

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Solution

The fourth proportional to 79,164.14, 109,297.40 and 70,651.70 is: 97,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,164.14 : 109,297.40 = 70,651.70 : x
  2. Step 2: Convert to fraction form
    79,164.14/109,297.40 = 70,651.70/x
  3. Step 3: Cross multiply
    79,164.14x = 109,297.40 × 70,651.70
  4. Step 4: Simplify right side
    79,164.14x = 7,722,046,215.83
  5. Step 5: Solve for x
    x = 7,722,046,215.83/79,164.14
  6. Step 6: Final answer
    x = 97,544.76

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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.