Home / 185,530.32-278,043.84-85,470.48

Finding the Fourth Proportional to 185,530.32, 278,043.84 and 85,470.48

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Solution

The fourth proportional to 185,530.32, 278,043.84 and 85,470.48 is: 128,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,530.32 : 278,043.84 = 85,470.48 : x
  2. Step 2: Convert to fraction form
    185,530.32/278,043.84 = 85,470.48/x
  3. Step 3: Cross multiply
    185,530.32x = 278,043.84 × 85,470.48
  4. Step 4: Simplify right side
    185,530.32x = 23,764,540,465.84
  5. Step 5: Solve for x
    x = 23,764,540,465.84/185,530.32
  6. Step 6: Final answer
    x = 128,089.79

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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.