Home / 185,646.75-278,475.60-45,405.38

Finding the Fourth Proportional to 185,646.75, 278,475.60 and 45,405.38

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Solution

The fourth proportional to 185,646.75, 278,475.60 and 45,405.38 is: 68,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,646.75 : 278,475.60 = 45,405.38 : x
  2. Step 2: Convert to fraction form
    185,646.75/278,475.60 = 45,405.38/x
  3. Step 3: Cross multiply
    185,646.75x = 278,475.60 × 45,405.38
  4. Step 4: Simplify right side
    185,646.75x = 12,644,289,046.35
  5. Step 5: Solve for x
    x = 12,644,289,046.35/185,646.75
  6. Step 6: Final answer
    x = 68,109.40

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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.