Home / 141,559.20-195,344.64-77,895.36

Finding the Fourth Proportional to 141,559.20, 195,344.64 and 77,895.36

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Solution

The fourth proportional to 141,559.20, 195,344.64 and 77,895.36 is: 107,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,559.20 : 195,344.64 = 77,895.36 : x
  2. Step 2: Convert to fraction form
    141,559.20/195,344.64 = 77,895.36/x
  3. Step 3: Cross multiply
    141,559.20x = 195,344.64 × 77,895.36
  4. Step 4: Simplify right side
    141,559.20x = 15,216,441,056.87
  5. Step 5: Solve for x
    x = 15,216,441,056.87/141,559.20
  6. Step 6: Final answer
    x = 107,491.71

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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.