Home / 121,411.32-167,560.10-73,028.81

Finding the Fourth Proportional to 121,411.32, 167,560.10 and 73,028.81

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Solution

The fourth proportional to 121,411.32, 167,560.10 and 73,028.81 is: 100,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,411.32 : 167,560.10 = 73,028.81 : x
  2. Step 2: Convert to fraction form
    121,411.32/167,560.10 = 73,028.81/x
  3. Step 3: Cross multiply
    121,411.32x = 167,560.10 × 73,028.81
  4. Step 4: Simplify right side
    121,411.32x = 12,236,713,503.54
  5. Step 5: Solve for x
    x = 12,236,713,503.54/121,411.32
  6. Step 6: Final answer
    x = 100,787.25

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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.