Home / 141,888.64-195,806.31-78,230.53

Finding the Fourth Proportional to 141,888.64, 195,806.31 and 78,230.53

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Solution

The fourth proportional to 141,888.64, 195,806.31 and 78,230.53 is: 107,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,888.64 : 195,806.31 = 78,230.53 : x
  2. Step 2: Convert to fraction form
    141,888.64/195,806.31 = 78,230.53/x
  3. Step 3: Cross multiply
    141,888.64x = 195,806.31 × 78,230.53
  4. Step 4: Simplify right side
    141,888.64x = 15,318,031,408.64
  5. Step 5: Solve for x
    x = 15,318,031,408.64/141,888.64
  6. Step 6: Final answer
    x = 107,958.12

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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.