Home / 141,341.81-195,049.49-77,678.24

Finding the Fourth Proportional to 141,341.81, 195,049.49 and 77,678.24

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Solution

The fourth proportional to 141,341.81, 195,049.49 and 77,678.24 is: 107,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,341.81 : 195,049.49 = 77,678.24 : x
  2. Step 2: Convert to fraction form
    141,341.81/195,049.49 = 77,678.24/x
  3. Step 3: Cross multiply
    141,341.81x = 195,049.49 × 77,678.24
  4. Step 4: Simplify right side
    141,341.81x = 15,151,099,732.46
  5. Step 5: Solve for x
    x = 15,151,099,732.46/141,341.81
  6. Step 6: Final answer
    x = 107,194.75

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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.