Home / 155,173.12-232,861.74-85,101.64

Finding the Fourth Proportional to 155,173.12, 232,861.74 and 85,101.64

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Solution

The fourth proportional to 155,173.12, 232,861.74 and 85,101.64 is: 127,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,173.12 : 232,861.74 = 85,101.64 : x
  2. Step 2: Convert to fraction form
    155,173.12/232,861.74 = 85,101.64/x
  3. Step 3: Cross multiply
    155,173.12x = 232,861.74 × 85,101.64
  4. Step 4: Simplify right side
    155,173.12x = 19,816,915,967.25
  5. Step 5: Solve for x
    x = 19,816,915,967.25/155,173.12
  6. Step 6: Final answer
    x = 127,708.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.