Home / 123,973.10-185,959.65-74,206.70

Finding the Fourth Proportional to 123,973.10, 185,959.65 and 74,206.70

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Solution

The fourth proportional to 123,973.10, 185,959.65 and 74,206.70 is: 111,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,973.10 : 185,959.65 = 74,206.70 : x
  2. Step 2: Convert to fraction form
    123,973.10/185,959.65 = 74,206.70/x
  3. Step 3: Cross multiply
    123,973.10x = 185,959.65 × 74,206.70
  4. Step 4: Simplify right side
    123,973.10x = 13,799,451,959.66
  5. Step 5: Solve for x
    x = 13,799,451,959.66/123,973.10
  6. Step 6: Final answer
    x = 111,310.05

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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.