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Finding the Fourth Proportional to 133,065.60, 199,655.10 and 69,934.20

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Solution

The fourth proportional to 133,065.60, 199,655.10 and 69,934.20 is: 104,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065.60 : 199,655.10 = 69,934.20 : x
  2. Step 2: Convert to fraction form
    133,065.60/199,655.10 = 69,934.20/x
  3. Step 3: Cross multiply
    133,065.60x = 199,655.10 × 69,934.20
  4. Step 4: Simplify right side
    133,065.60x = 13,962,719,694.42
  5. Step 5: Solve for x
    x = 13,962,719,694.42/133,065.60
  6. Step 6: Final answer
    x = 104,931.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.