Home / 185,320.92-278,288.90-115,643.10

Finding the Fourth Proportional to 185,320.92, 278,288.90 and 115,643.10

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Solution

The fourth proportional to 185,320.92, 278,288.90 and 115,643.10 is: 173,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,320.92 : 278,288.90 = 115,643.10 : x
  2. Step 2: Convert to fraction form
    185,320.92/278,288.90 = 115,643.10/x
  3. Step 3: Cross multiply
    185,320.92x = 278,288.90 × 115,643.10
  4. Step 4: Simplify right side
    185,320.92x = 32,182,191,091.59
  5. Step 5: Solve for x
    x = 32,182,191,091.59/185,320.92
  6. Step 6: Final answer
    x = 173,656.55

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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.