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Finding the Fourth Proportional to 154,266.60, 212,884.58 and 83,610.60

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Solution

The fourth proportional to 154,266.60, 212,884.58 and 83,610.60 is: 115,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,266.60 : 212,884.58 = 83,610.60 : x
  2. Step 2: Convert to fraction form
    154,266.60/212,884.58 = 83,610.60/x
  3. Step 3: Cross multiply
    154,266.60x = 212,884.58 × 83,610.60
  4. Step 4: Simplify right side
    154,266.60x = 17,799,407,464.55
  5. Step 5: Solve for x
    x = 17,799,407,464.55/154,266.60
  6. Step 6: Final answer
    x = 115,380.82

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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.