Home / 185,423.21-278,146.56-71,625.30

Finding the Fourth Proportional to 185,423.21, 278,146.56 and 71,625.30

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Solution

The fourth proportional to 185,423.21, 278,146.56 and 71,625.30 is: 107,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,423.21 : 278,146.56 = 71,625.30 : x
  2. Step 2: Convert to fraction form
    185,423.21/278,146.56 = 71,625.30/x
  3. Step 3: Cross multiply
    185,423.21x = 278,146.56 × 71,625.30
  4. Step 4: Simplify right side
    185,423.21x = 19,922,330,803.97
  5. Step 5: Solve for x
    x = 19,922,330,803.97/185,423.21
  6. Step 6: Final answer
    x = 107,442.49

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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.