Home / 112,724.52-155,524.62-64,971.37

Finding the Fourth Proportional to 112,724.52, 155,524.62 and 64,971.37

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Solution

The fourth proportional to 112,724.52, 155,524.62 and 64,971.37 is: 89,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,724.52 : 155,524.62 = 64,971.37 : x
  2. Step 2: Convert to fraction form
    112,724.52/155,524.62 = 64,971.37/x
  3. Step 3: Cross multiply
    112,724.52x = 155,524.62 × 64,971.37
  4. Step 4: Simplify right side
    112,724.52x = 10,104,647,630.13
  5. Step 5: Solve for x
    x = 10,104,647,630.13/112,724.52
  6. Step 6: Final answer
    x = 89,640.19

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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.