Home / 193,785.21-267,421.91-108,902.07

Finding the Fourth Proportional to 193,785.21, 267,421.91 and 108,902.07

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Solution

The fourth proportional to 193,785.21, 267,421.91 and 108,902.07 is: 150,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,785.21 : 267,421.91 = 108,902.07 : x
  2. Step 2: Convert to fraction form
    193,785.21/267,421.91 = 108,902.07/x
  3. Step 3: Cross multiply
    193,785.21x = 267,421.91 × 108,902.07
  4. Step 4: Simplify right side
    193,785.21x = 29,122,799,017.84
  5. Step 5: Solve for x
    x = 29,122,799,017.84/193,785.21
  6. Step 6: Final answer
    x = 150,283.91

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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.