Home / 141,389.04-195,120.60-77,728.44

Finding the Fourth Proportional to 141,389.04, 195,120.60 and 77,728.44

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Solution

The fourth proportional to 141,389.04, 195,120.60 and 77,728.44 is: 107,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,389.04 : 195,120.60 = 77,728.44 : x
  2. Step 2: Convert to fraction form
    141,389.04/195,120.60 = 77,728.44/x
  3. Step 3: Cross multiply
    141,389.04x = 195,120.60 × 77,728.44
  4. Step 4: Simplify right side
    141,389.04x = 15,166,419,849.86
  5. Step 5: Solve for x
    x = 15,166,419,849.86/141,389.04
  6. Step 6: Final answer
    x = 107,267.29

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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.