Home / 155,753.23-214,939.55-84,133.25

Finding the Fourth Proportional to 155,753.23, 214,939.55 and 84,133.25

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Solution

The fourth proportional to 155,753.23, 214,939.55 and 84,133.25 is: 116,103.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,753.23 : 214,939.55 = 84,133.25 : x
  2. Step 2: Convert to fraction form
    155,753.23/214,939.55 = 84,133.25/x
  3. Step 3: Cross multiply
    155,753.23x = 214,939.55 × 84,133.25
  4. Step 4: Simplify right side
    155,753.23x = 18,083,562,895.04
  5. Step 5: Solve for x
    x = 18,083,562,895.04/155,753.23
  6. Step 6: Final answer
    x = 116,103.94

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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.