Home / 155,724.50-214,899.78-84,104.52

Finding the Fourth Proportional to 155,724.50, 214,899.78 and 84,104.52

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Solution

The fourth proportional to 155,724.50, 214,899.78 and 84,104.52 is: 116,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,724.50 : 214,899.78 = 84,104.52 : x
  2. Step 2: Convert to fraction form
    155,724.50/214,899.78 = 84,104.52/x
  3. Step 3: Cross multiply
    155,724.50x = 214,899.78 × 84,104.52
  4. Step 4: Simplify right side
    155,724.50x = 18,074,042,845.01
  5. Step 5: Solve for x
    x = 18,074,042,845.01/155,724.50
  6. Step 6: Final answer
    x = 116,064.22

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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.