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Finding the Fourth Proportional to 133,066.60, 199,656.60 and 69,935.20

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Solution

The fourth proportional to 133,066.60, 199,656.60 and 69,935.20 is: 104,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,066.60 : 199,656.60 = 69,935.20 : x
  2. Step 2: Convert to fraction form
    133,066.60/199,656.60 = 69,935.20/x
  3. Step 3: Cross multiply
    133,066.60x = 199,656.60 × 69,935.20
  4. Step 4: Simplify right side
    133,066.60x = 13,963,024,252.32
  5. Step 5: Solve for x
    x = 13,963,024,252.32/133,066.60
  6. Step 6: Final answer
    x = 104,932.60

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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.