Home / 141,992.16-195,950.70-78,329.40

Finding the Fourth Proportional to 141,992.16, 195,950.70 and 78,329.40

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Solution

The fourth proportional to 141,992.16, 195,950.70 and 78,329.40 is: 108,095.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,992.16 : 195,950.70 = 78,329.40 : x
  2. Step 2: Convert to fraction form
    141,992.16/195,950.70 = 78,329.40/x
  3. Step 3: Cross multiply
    141,992.16x = 195,950.70 × 78,329.40
  4. Step 4: Simplify right side
    141,992.16x = 15,348,700,760.58
  5. Step 5: Solve for x
    x = 15,348,700,760.58/141,992.16
  6. Step 6: Final answer
    x = 108,095.41

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1.5x scale

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.