Home / 141,384.88-195,115.80-77,725.36

Finding the Fourth Proportional to 141,384.88, 195,115.80 and 77,725.36

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Solution

The fourth proportional to 141,384.88, 195,115.80 and 77,725.36 is: 107,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,384.88 : 195,115.80 = 77,725.36 : x
  2. Step 2: Convert to fraction form
    141,384.88/195,115.80 = 77,725.36/x
  3. Step 3: Cross multiply
    141,384.88x = 195,115.80 × 77,725.36
  4. Step 4: Simplify right side
    141,384.88x = 15,165,445,796.69
  5. Step 5: Solve for x
    x = 15,165,445,796.69/141,384.88
  6. Step 6: Final answer
    x = 107,263.56

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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.