Home / 123,656.20-185,873.10-121,323.40

Finding the Fourth Proportional to 123,656.20, 185,873.10 and 121,323.40

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Solution

The fourth proportional to 123,656.20, 185,873.10 and 121,323.40 is: 182,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,656.20 : 185,873.10 = 121,323.40 : x
  2. Step 2: Convert to fraction form
    123,656.20/185,873.10 = 121,323.40/x
  3. Step 3: Cross multiply
    123,656.20x = 185,873.10 × 121,323.40
  4. Step 4: Simplify right side
    123,656.20x = 22,550,756,460.54
  5. Step 5: Solve for x
    x = 22,550,756,460.54/123,656.20
  6. Step 6: Final answer
    x = 182,366.57

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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.