Home / 121,995.25-168,353.44-68,280.30

Finding the Fourth Proportional to 121,995.25, 168,353.44 and 68,280.30

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Solution

The fourth proportional to 121,995.25, 168,353.44 and 68,280.30 is: 94,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,995.25 : 168,353.44 = 68,280.30 : x
  2. Step 2: Convert to fraction form
    121,995.25/168,353.44 = 68,280.30/x
  3. Step 3: Cross multiply
    121,995.25x = 168,353.44 × 68,280.30
  4. Step 4: Simplify right side
    121,995.25x = 11,495,223,218.53
  5. Step 5: Solve for x
    x = 11,495,223,218.53/121,995.25
  6. Step 6: Final answer
    x = 94,226.81

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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.