Home / 185,761.48-278,642.19-45,518.89

Finding the Fourth Proportional to 185,761.48, 278,642.19 and 45,518.89

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Solution

The fourth proportional to 185,761.48, 278,642.19 and 45,518.89 is: 68,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,761.48 : 278,642.19 = 45,518.89 : x
  2. Step 2: Convert to fraction form
    185,761.48/278,642.19 = 45,518.89/x
  3. Step 3: Cross multiply
    185,761.48x = 278,642.19 × 45,518.89
  4. Step 4: Simplify right side
    185,761.48x = 12,683,483,195.97
  5. Step 5: Solve for x
    x = 12,683,483,195.97/185,761.48
  6. Step 6: Final answer
    x = 68,278.33

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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.