Home / 141,692.87-195,537.49-78,031.13

Finding the Fourth Proportional to 141,692.87, 195,537.49 and 78,031.13

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Solution

The fourth proportional to 141,692.87, 195,537.49 and 78,031.13 is: 107,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,692.87 : 195,537.49 = 78,031.13 : x
  2. Step 2: Convert to fraction form
    141,692.87/195,537.49 = 78,031.13/x
  3. Step 3: Cross multiply
    141,692.87x = 195,537.49 × 78,031.13
  4. Step 4: Simplify right side
    141,692.87x = 15,258,010,129.30
  5. Step 5: Solve for x
    x = 15,258,010,129.30/141,692.87
  6. Step 6: Final answer
    x = 107,683.68

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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.