Home / 141,426.96-195,168.60-77,768.16

Finding the Fourth Proportional to 141,426.96, 195,168.60 and 77,768.16

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Solution

The fourth proportional to 141,426.96, 195,168.60 and 77,768.16 is: 107,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,426.96 : 195,168.60 = 77,768.16 : x
  2. Step 2: Convert to fraction form
    141,426.96/195,168.60 = 77,768.16/x
  3. Step 3: Cross multiply
    141,426.96x = 195,168.60 × 77,768.16
  4. Step 4: Simplify right side
    141,426.96x = 15,177,902,911.78
  5. Step 5: Solve for x
    x = 15,177,902,911.78/141,426.96
  6. Step 6: Final answer
    x = 107,319.73

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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.