Home / 141,765.14-195,636.48-78,101.58

Finding the Fourth Proportional to 141,765.14, 195,636.48 and 78,101.58

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Solution

The fourth proportional to 141,765.14, 195,636.48 and 78,101.58 is: 107,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,765.14 : 195,636.48 = 78,101.58 : x
  2. Step 2: Convert to fraction form
    141,765.14/195,636.48 = 78,101.58/x
  3. Step 3: Cross multiply
    141,765.14x = 195,636.48 × 78,101.58
  4. Step 4: Simplify right side
    141,765.14x = 15,279,518,193.64
  5. Step 5: Solve for x
    x = 15,279,518,193.64/141,765.14
  6. Step 6: Final answer
    x = 107,780.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.