Home / 121,401.06-166,642.14-107,672.18

Finding the Fourth Proportional to 121,401.06, 166,642.14 and 107,672.18

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Solution

The fourth proportional to 121,401.06, 166,642.14 and 107,672.18 is: 147,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,401.06 : 166,642.14 = 107,672.18 : x
  2. Step 2: Convert to fraction form
    121,401.06/166,642.14 = 107,672.18/x
  3. Step 3: Cross multiply
    121,401.06x = 166,642.14 × 107,672.18
  4. Step 4: Simplify right side
    121,401.06x = 17,942,721,660.45
  5. Step 5: Solve for x
    x = 17,942,721,660.45/121,401.06
  6. Step 6: Final answer
    x = 147,797.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.