Home / 111,138.08-166,718.12-36,255.20

Finding the Fourth Proportional to 111,138.08, 166,718.12 and 36,255.20

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Solution

The fourth proportional to 111,138.08, 166,718.12 and 36,255.20 is: 54,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,138.08 : 166,718.12 = 36,255.20 : x
  2. Step 2: Convert to fraction form
    111,138.08/166,718.12 = 36,255.20/x
  3. Step 3: Cross multiply
    111,138.08x = 166,718.12 × 36,255.20
  4. Step 4: Simplify right side
    111,138.08x = 6,044,397,769.36
  5. Step 5: Solve for x
    x = 6,044,397,769.36/111,138.08
  6. Step 6: Final answer
    x = 54,386.38

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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.