Home / 141,399.08-195,131.40-77,741

Finding the Fourth Proportional to 141,399.08, 195,131.40 and 77,741

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Solution

The fourth proportional to 141,399.08, 195,131.40 and 77,741 is: 107,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,399.08 : 195,131.40 = 77,741 : x
  2. Step 2: Convert to fraction form
    141,399.08/195,131.40 = 77,741/x
  3. Step 3: Cross multiply
    141,399.08x = 195,131.40 × 77,741
  4. Step 4: Simplify right side
    141,399.08x = 15,169,710,167.40
  5. Step 5: Solve for x
    x = 15,169,710,167.40/141,399.08
  6. Step 6: Final answer
    x = 107,282.95

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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.