Home / 141,780.20-195,658.98-78,117.08

Finding the Fourth Proportional to 141,780.20, 195,658.98 and 78,117.08

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Solution

The fourth proportional to 141,780.20, 195,658.98 and 78,117.08 is: 107,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,780.20 : 195,658.98 = 78,117.08 : x
  2. Step 2: Convert to fraction form
    141,780.20/195,658.98 = 78,117.08/x
  3. Step 3: Cross multiply
    141,780.20x = 195,658.98 × 78,117.08
  4. Step 4: Simplify right side
    141,780.20x = 15,284,308,193.38
  5. Step 5: Solve for x
    x = 15,284,308,193.38/141,780.20
  6. Step 6: Final answer
    x = 107,802.84

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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.