Home / 111,531.38-167,297.18-91,768.40

Finding the Fourth Proportional to 111,531.38, 167,297.18 and 91,768.40

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Solution

The fourth proportional to 111,531.38, 167,297.18 and 91,768.40 is: 137,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,531.38 : 167,297.18 = 91,768.40 : x
  2. Step 2: Convert to fraction form
    111,531.38/167,297.18 = 91,768.40/x
  3. Step 3: Cross multiply
    111,531.38x = 167,297.18 × 91,768.40
  4. Step 4: Simplify right side
    111,531.38x = 15,352,593,237.78
  5. Step 5: Solve for x
    x = 15,352,593,237.78/111,531.38
  6. Step 6: Final answer
    x = 137,652.69

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1.5x scale

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.