Home / 121,257.45-167,326.68-66,807.24

Finding the Fourth Proportional to 121,257.45, 167,326.68 and 66,807.24

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Solution

The fourth proportional to 121,257.45, 167,326.68 and 66,807.24 is: 92,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,257.45 : 167,326.68 = 66,807.24 : x
  2. Step 2: Convert to fraction form
    121,257.45/167,326.68 = 66,807.24/x
  3. Step 3: Cross multiply
    121,257.45x = 167,326.68 × 66,807.24
  4. Step 4: Simplify right side
    121,257.45x = 11,178,633,669.16
  5. Step 5: Solve for x
    x = 11,178,633,669.16/121,257.45
  6. Step 6: Final answer
    x = 92,189.25

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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.