Home / 121,374.23-167,568.19-107,908.20

Finding the Fourth Proportional to 121,374.23, 167,568.19 and 107,908.20

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Solution

The fourth proportional to 121,374.23, 167,568.19 and 107,908.20 is: 148,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,374.23 : 167,568.19 = 107,908.20 : x
  2. Step 2: Convert to fraction form
    121,374.23/167,568.19 = 107,908.20/x
  3. Step 3: Cross multiply
    121,374.23x = 167,568.19 × 107,908.20
  4. Step 4: Simplify right side
    121,374.23x = 18,081,982,118.77
  5. Step 5: Solve for x
    x = 18,081,982,118.77/121,374.23
  6. Step 6: Final answer
    x = 148,977.11

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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.