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Finding the Fourth Proportional to 123,662.63, 170,654.43 and 69,946.49

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Solution

The fourth proportional to 123,662.63, 170,654.43 and 69,946.49 is: 96,526.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,662.63 : 170,654.43 = 69,946.49 : x
  2. Step 2: Convert to fraction form
    123,662.63/170,654.43 = 69,946.49/x
  3. Step 3: Cross multiply
    123,662.63x = 170,654.43 × 69,946.49
  4. Step 4: Simplify right side
    123,662.63x = 11,936,677,528.18
  5. Step 5: Solve for x
    x = 11,936,677,528.18/123,662.63
  6. Step 6: Final answer
    x = 96,526.15

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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.