Home / 123,713.40-185,570.10-92,220.60

Finding the Fourth Proportional to 123,713.40, 185,570.10 and 92,220.60

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Solution

The fourth proportional to 123,713.40, 185,570.10 and 92,220.60 is: 138,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,713.40 : 185,570.10 = 92,220.60 : x
  2. Step 2: Convert to fraction form
    123,713.40/185,570.10 = 92,220.60/x
  3. Step 3: Cross multiply
    123,713.40x = 185,570.10 × 92,220.60
  4. Step 4: Simplify right side
    123,713.40x = 17,113,385,964.06
  5. Step 5: Solve for x
    x = 17,113,385,964.06/123,713.40
  6. Step 6: Final answer
    x = 138,330.90

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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.