Home / 185,420.32-278,007.56-67,076.08

Finding the Fourth Proportional to 185,420.32, 278,007.56 and 67,076.08

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Solution

The fourth proportional to 185,420.32, 278,007.56 and 67,076.08 is: 100,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,420.32 : 278,007.56 = 67,076.08 : x
  2. Step 2: Convert to fraction form
    185,420.32/278,007.56 = 67,076.08/x
  3. Step 3: Cross multiply
    185,420.32x = 278,007.56 × 67,076.08
  4. Step 4: Simplify right side
    185,420.32x = 18,647,657,335.16
  5. Step 5: Solve for x
    x = 18,647,657,335.16/185,420.32
  6. Step 6: Final answer
    x = 100,569.65

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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.