Home / 121,205.30-167,268.24-67,486.91

Finding the Fourth Proportional to 121,205.30, 167,268.24 and 67,486.91

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Solution

The fourth proportional to 121,205.30, 167,268.24 and 67,486.91 is: 93,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.30 : 167,268.24 = 67,486.91 : x
  2. Step 2: Convert to fraction form
    121,205.30/167,268.24 = 67,486.91/x
  3. Step 3: Cross multiply
    121,205.30x = 167,268.24 × 67,486.91
  4. Step 4: Simplify right side
    121,205.30x = 11,288,415,822.40
  5. Step 5: Solve for x
    x = 11,288,415,822.40/121,205.30
  6. Step 6: Final answer
    x = 93,134.68

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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.