Home / 141,719.31-195,570.32-78,063.03

Finding the Fourth Proportional to 141,719.31, 195,570.32 and 78,063.03

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Solution

The fourth proportional to 141,719.31, 195,570.32 and 78,063.03 is: 107,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,719.31 : 195,570.32 = 78,063.03 : x
  2. Step 2: Convert to fraction form
    141,719.31/195,570.32 = 78,063.03/x
  3. Step 3: Cross multiply
    141,719.31x = 195,570.32 × 78,063.03
  4. Step 4: Simplify right side
    141,719.31x = 15,266,811,366.95
  5. Step 5: Solve for x
    x = 15,266,811,366.95/141,719.31
  6. Step 6: Final answer
    x = 107,725.70

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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.