Home / 185,418.60-278,138.67-71,567.05

Finding the Fourth Proportional to 185,418.60, 278,138.67 and 71,567.05

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Solution

The fourth proportional to 185,418.60, 278,138.67 and 71,567.05 is: 107,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,418.60 : 278,138.67 = 71,567.05 : x
  2. Step 2: Convert to fraction form
    185,418.60/278,138.67 = 71,567.05/x
  3. Step 3: Cross multiply
    185,418.60x = 278,138.67 × 71,567.05
  4. Step 4: Simplify right side
    185,418.60x = 19,905,564,102.82
  5. Step 5: Solve for x
    x = 19,905,564,102.82/185,418.60
  6. Step 6: Final answer
    x = 107,354.73

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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.