Home / 141,856.38-195,762.42-78,192.81

Finding the Fourth Proportional to 141,856.38, 195,762.42 and 78,192.81

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Solution

The fourth proportional to 141,856.38, 195,762.42 and 78,192.81 is: 107,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.38 : 195,762.42 = 78,192.81 : x
  2. Step 2: Convert to fraction form
    141,856.38/195,762.42 = 78,192.81/x
  3. Step 3: Cross multiply
    141,856.38x = 195,762.42 × 78,192.81
  4. Step 4: Simplify right side
    141,856.38x = 15,307,213,712.20
  5. Step 5: Solve for x
    x = 15,307,213,712.20/141,856.38
  6. Step 6: Final answer
    x = 107,906.42

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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.