Home / 141,854.79-195,759.56-78,193.65

Finding the Fourth Proportional to 141,854.79, 195,759.56 and 78,193.65

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Solution

The fourth proportional to 141,854.79, 195,759.56 and 78,193.65 is: 107,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,854.79 : 195,759.56 = 78,193.65 : x
  2. Step 2: Convert to fraction form
    141,854.79/195,759.56 = 78,193.65/x
  3. Step 3: Cross multiply
    141,854.79x = 195,759.56 × 78,193.65
  4. Step 4: Simplify right side
    141,854.79x = 15,307,154,518.79
  5. Step 5: Solve for x
    x = 15,307,154,518.79/141,854.79
  6. Step 6: Final answer
    x = 107,907.21

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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.