Home / 111,748.38-154,212.76-61,447.38

Finding the Fourth Proportional to 111,748.38, 154,212.76 and 61,447.38

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Solution

The fourth proportional to 111,748.38, 154,212.76 and 61,447.38 is: 84,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,748.38 : 154,212.76 = 61,447.38 : x
  2. Step 2: Convert to fraction form
    111,748.38/154,212.76 = 61,447.38/x
  3. Step 3: Cross multiply
    111,748.38x = 154,212.76 × 61,447.38
  4. Step 4: Simplify right side
    111,748.38x = 9,475,970,064.57
  5. Step 5: Solve for x
    x = 9,475,970,064.57/111,748.38
  6. Step 6: Final answer
    x = 84,797.38

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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.