Home / 121,047.12-167,049.18-66,601.62

Finding the Fourth Proportional to 121,047.12, 167,049.18 and 66,601.62

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Solution

The fourth proportional to 121,047.12, 167,049.18 and 66,601.62 is: 91,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,047.12 : 167,049.18 = 66,601.62 : x
  2. Step 2: Convert to fraction form
    121,047.12/167,049.18 = 66,601.62/x
  3. Step 3: Cross multiply
    121,047.12x = 167,049.18 × 66,601.62
  4. Step 4: Simplify right side
    121,047.12x = 11,125,746,007.67
  5. Step 5: Solve for x
    x = 11,125,746,007.67/121,047.12
  6. Step 6: Final answer
    x = 91,912.52

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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.