Home / 165,113.58-247,590.25-80,774.96

Finding the Fourth Proportional to 165,113.58, 247,590.25 and 80,774.96

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Solution

The fourth proportional to 165,113.58, 247,590.25 and 80,774.96 is: 121,123.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,113.58 : 247,590.25 = 80,774.96 : x
  2. Step 2: Convert to fraction form
    165,113.58/247,590.25 = 80,774.96/x
  3. Step 3: Cross multiply
    165,113.58x = 247,590.25 × 80,774.96
  4. Step 4: Simplify right side
    165,113.58x = 19,999,092,540.14
  5. Step 5: Solve for x
    x = 19,999,092,540.14/165,113.58
  6. Step 6: Final answer
    x = 121,123.24

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1.5x scale

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.