Home / 141,942.92-195,881.13-78,280.74

Finding the Fourth Proportional to 141,942.92, 195,881.13 and 78,280.74

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Solution

The fourth proportional to 141,942.92, 195,881.13 and 78,280.74 is: 108,027.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,942.92 : 195,881.13 = 78,280.74 : x
  2. Step 2: Convert to fraction form
    141,942.92/195,881.13 = 78,280.74/x
  3. Step 3: Cross multiply
    141,942.92x = 195,881.13 × 78,280.74
  4. Step 4: Simplify right side
    141,942.92x = 15,333,719,808.44
  5. Step 5: Solve for x
    x = 15,333,719,808.44/141,942.92
  6. Step 6: Final answer
    x = 108,027.37

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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.