Home / 141,851.70-195,755.35-78,190.87

Finding the Fourth Proportional to 141,851.70, 195,755.35 and 78,190.87

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Solution

The fourth proportional to 141,851.70, 195,755.35 and 78,190.87 is: 107,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,851.70 : 195,755.35 = 78,190.87 : x
  2. Step 2: Convert to fraction form
    141,851.70/195,755.35 = 78,190.87/x
  3. Step 3: Cross multiply
    141,851.70x = 195,755.35 × 78,190.87
  4. Step 4: Simplify right side
    141,851.70x = 15,306,281,123.65
  5. Step 5: Solve for x
    x = 15,306,281,123.65/141,851.70
  6. Step 6: Final answer
    x = 107,903.40

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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.