Home / 141,810.62-195,697.71-78,148.47

Finding the Fourth Proportional to 141,810.62, 195,697.71 and 78,148.47

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Solution

The fourth proportional to 141,810.62, 195,697.71 and 78,148.47 is: 107,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,810.62 : 195,697.71 = 78,148.47 : x
  2. Step 2: Convert to fraction form
    141,810.62/195,697.71 = 78,148.47/x
  3. Step 3: Cross multiply
    141,810.62x = 195,697.71 × 78,148.47
  4. Step 4: Simplify right side
    141,810.62x = 15,293,476,619.00
  5. Step 5: Solve for x
    x = 15,293,476,619.00/141,810.62
  6. Step 6: Final answer
    x = 107,844.37

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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.