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Finding the Fourth Proportional to 123,969.78, 185,953.02 and 30,476.34

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Solution

The fourth proportional to 123,969.78, 185,953.02 and 30,476.34 is: 45,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,969.78 : 185,953.02 = 30,476.34 : x
  2. Step 2: Convert to fraction form
    123,969.78/185,953.02 = 30,476.34/x
  3. Step 3: Cross multiply
    123,969.78x = 185,953.02 × 30,476.34
  4. Step 4: Simplify right side
    123,969.78x = 5,667,167,461.55
  5. Step 5: Solve for x
    x = 5,667,167,461.55/123,969.78
  6. Step 6: Final answer
    x = 45,714.10

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1.5x scale

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.