Home / 123,731.40-185,597.10-92,238.60

Finding the Fourth Proportional to 123,731.40, 185,597.10 and 92,238.60

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Solution

The fourth proportional to 123,731.40, 185,597.10 and 92,238.60 is: 138,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,731.40 : 185,597.10 = 92,238.60 : x
  2. Step 2: Convert to fraction form
    123,731.40/185,597.10 = 92,238.60/x
  3. Step 3: Cross multiply
    123,731.40x = 185,597.10 × 92,238.60
  4. Step 4: Simplify right side
    123,731.40x = 17,119,216,668.06
  5. Step 5: Solve for x
    x = 17,119,216,668.06/123,731.40
  6. Step 6: Final answer
    x = 138,357.90

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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.