Home / 141,458.87-195,209.35-77,796.68

Finding the Fourth Proportional to 141,458.87, 195,209.35 and 77,796.68

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Solution

The fourth proportional to 141,458.87, 195,209.35 and 77,796.68 is: 107,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,458.87 : 195,209.35 = 77,796.68 : x
  2. Step 2: Convert to fraction form
    141,458.87/195,209.35 = 77,796.68/x
  3. Step 3: Cross multiply
    141,458.87x = 195,209.35 × 77,796.68
  4. Step 4: Simplify right side
    141,458.87x = 15,186,638,164.42
  5. Step 5: Solve for x
    x = 15,186,638,164.42/141,458.87
  6. Step 6: Final answer
    x = 107,357.27

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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.