Home / 141,895.02-195,811.38-78,231.18

Finding the Fourth Proportional to 141,895.02, 195,811.38 and 78,231.18

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Solution

The fourth proportional to 141,895.02, 195,811.38 and 78,231.18 is: 107,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,895.02 : 195,811.38 = 78,231.18 : x
  2. Step 2: Convert to fraction form
    141,895.02/195,811.38 = 78,231.18/x
  3. Step 3: Cross multiply
    141,895.02x = 195,811.38 × 78,231.18
  4. Step 4: Simplify right side
    141,895.02x = 15,318,555,314.83
  5. Step 5: Solve for x
    x = 15,318,555,314.83/141,895.02
  6. Step 6: Final answer
    x = 107,956.96

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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.