Home / 121,148.64-167,169.30-67,435.92

Finding the Fourth Proportional to 121,148.64, 167,169.30 and 67,435.92

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Solution

The fourth proportional to 121,148.64, 167,169.30 and 67,435.92 is: 93,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.64 : 167,169.30 = 67,435.92 : x
  2. Step 2: Convert to fraction form
    121,148.64/167,169.30 = 67,435.92/x
  3. Step 3: Cross multiply
    121,148.64x = 167,169.30 × 67,435.92
  4. Step 4: Simplify right side
    121,148.64x = 11,273,215,541.26
  5. Step 5: Solve for x
    x = 11,273,215,541.26/121,148.64
  6. Step 6: Final answer
    x = 93,052.76

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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.