Home / 121,948.83-168,280.20-68,223.96

Finding the Fourth Proportional to 121,948.83, 168,280.20 and 68,223.96

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Solution

The fourth proportional to 121,948.83, 168,280.20 and 68,223.96 is: 94,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,948.83 : 168,280.20 = 68,223.96 : x
  2. Step 2: Convert to fraction form
    121,948.83/168,280.20 = 68,223.96/x
  3. Step 3: Cross multiply
    121,948.83x = 168,280.20 × 68,223.96
  4. Step 4: Simplify right side
    121,948.83x = 11,480,741,633.59
  5. Step 5: Solve for x
    x = 11,480,741,633.59/121,948.83
  6. Step 6: Final answer
    x = 94,143.93

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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.