Home / 121,280.05-167,371.64-67,565.04

Finding the Fourth Proportional to 121,280.05, 167,371.64 and 67,565.04

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Solution

The fourth proportional to 121,280.05, 167,371.64 and 67,565.04 is: 93,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,280.05 : 167,371.64 = 67,565.04 : x
  2. Step 2: Convert to fraction form
    121,280.05/167,371.64 = 67,565.04/x
  3. Step 3: Cross multiply
    121,280.05x = 167,371.64 × 67,565.04
  4. Step 4: Simplify right side
    121,280.05x = 11,308,471,551.47
  5. Step 5: Solve for x
    x = 11,308,471,551.47/121,280.05
  6. Step 6: Final answer
    x = 93,242.64

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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.