Home / 185,370.72-278,077.94-138,918.84

Finding the Fourth Proportional to 185,370.72, 278,077.94 and 138,918.84

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Solution

The fourth proportional to 185,370.72, 278,077.94 and 138,918.84 is: 208,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,370.72 : 278,077.94 = 138,918.84 : x
  2. Step 2: Convert to fraction form
    185,370.72/278,077.94 = 138,918.84/x
  3. Step 3: Cross multiply
    185,370.72x = 278,077.94 × 138,918.84
  4. Step 4: Simplify right side
    185,370.72x = 38,630,264,854.39
  5. Step 5: Solve for x
    x = 38,630,264,854.39/185,370.72
  6. Step 6: Final answer
    x = 208,394.64

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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.