Home / 121,819.02-168,096.51-68,102.25

Finding the Fourth Proportional to 121,819.02, 168,096.51 and 68,102.25

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Solution

The fourth proportional to 121,819.02, 168,096.51 and 68,102.25 is: 93,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,819.02 : 168,096.51 = 68,102.25 : x
  2. Step 2: Convert to fraction form
    121,819.02/168,096.51 = 68,102.25/x
  3. Step 3: Cross multiply
    121,819.02x = 168,096.51 × 68,102.25
  4. Step 4: Simplify right side
    121,819.02x = 11,447,750,548.15
  5. Step 5: Solve for x
    x = 11,447,750,548.15/121,819.02
  6. Step 6: Final answer
    x = 93,973.43

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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.