Home / 141,895.22-195,816.76-78,235.29

Finding the Fourth Proportional to 141,895.22, 195,816.76 and 78,235.29

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Solution

The fourth proportional to 141,895.22, 195,816.76 and 78,235.29 is: 107,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,895.22 : 195,816.76 = 78,235.29 : x
  2. Step 2: Convert to fraction form
    141,895.22/195,816.76 = 78,235.29/x
  3. Step 3: Cross multiply
    141,895.22x = 195,816.76 × 78,235.29
  4. Step 4: Simplify right side
    141,895.22x = 15,319,780,809.87
  5. Step 5: Solve for x
    x = 15,319,780,809.87/141,895.22
  6. Step 6: Final answer
    x = 107,965.45

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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.