Home / 141,439.55-195,186.57-77,777.33

Finding the Fourth Proportional to 141,439.55, 195,186.57 and 77,777.33

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Solution

The fourth proportional to 141,439.55, 195,186.57 and 77,777.33 is: 107,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,439.55 : 195,186.57 = 77,777.33 : x
  2. Step 2: Convert to fraction form
    141,439.55/195,186.57 = 77,777.33/x
  3. Step 3: Cross multiply
    141,439.55x = 195,186.57 × 77,777.33
  4. Step 4: Simplify right side
    141,439.55x = 15,181,090,266.46
  5. Step 5: Solve for x
    x = 15,181,090,266.46/141,439.55
  6. Step 6: Final answer
    x = 107,332.71

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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.