Home / 141,406.98-195,141.15-77,744.58

Finding the Fourth Proportional to 141,406.98, 195,141.15 and 77,744.58

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Solution

The fourth proportional to 141,406.98, 195,141.15 and 77,744.58 is: 107,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.98 : 195,141.15 = 77,744.58 : x
  2. Step 2: Convert to fraction form
    141,406.98/195,141.15 = 77,744.58/x
  3. Step 3: Cross multiply
    141,406.98x = 195,141.15 × 77,744.58
  4. Step 4: Simplify right side
    141,406.98x = 15,171,166,747.47
  5. Step 5: Solve for x
    x = 15,171,166,747.47/141,406.98
  6. Step 6: Final answer
    x = 107,287.26

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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.