Home / 155,549.64-214,679.37-87,580.11

Finding the Fourth Proportional to 155,549.64, 214,679.37 and 87,580.11

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Solution

The fourth proportional to 155,549.64, 214,679.37 and 87,580.11 is: 120,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,549.64 : 214,679.37 = 87,580.11 : x
  2. Step 2: Convert to fraction form
    155,549.64/214,679.37 = 87,580.11/x
  3. Step 3: Cross multiply
    155,549.64x = 214,679.37 × 87,580.11
  4. Step 4: Simplify right side
    155,549.64x = 18,801,642,839.33
  5. Step 5: Solve for x
    x = 18,801,642,839.33/155,549.64
  6. Step 6: Final answer
    x = 120,872.30

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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.