Home / 121,422.84-167,565.66-66,981.24

Finding the Fourth Proportional to 121,422.84, 167,565.66 and 66,981.24

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Solution

The fourth proportional to 121,422.84, 167,565.66 and 66,981.24 is: 92,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.84 : 167,565.66 = 66,981.24 : x
  2. Step 2: Convert to fraction form
    121,422.84/167,565.66 = 66,981.24/x
  3. Step 3: Cross multiply
    121,422.84x = 167,565.66 × 66,981.24
  4. Step 4: Simplify right side
    121,422.84x = 11,223,755,688.22
  5. Step 5: Solve for x
    x = 11,223,755,688.22/121,422.84
  6. Step 6: Final answer
    x = 92,435.29

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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.