Home / 155,534.72-214,635.53-87,551.49

Finding the Fourth Proportional to 155,534.72, 214,635.53 and 87,551.49

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Solution

The fourth proportional to 155,534.72, 214,635.53 and 87,551.49 is: 120,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,534.72 : 214,635.53 = 87,551.49 : x
  2. Step 2: Convert to fraction form
    155,534.72/214,635.53 = 87,551.49/x
  3. Step 3: Cross multiply
    155,534.72x = 214,635.53 × 87,551.49
  4. Step 4: Simplify right side
    155,534.72x = 18,791,659,385.26
  5. Step 5: Solve for x
    x = 18,791,659,385.26/155,534.72
  6. Step 6: Final answer
    x = 120,819.71

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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.