Home / 155,272.56-214,261.23-87,273.87

Finding the Fourth Proportional to 155,272.56, 214,261.23 and 87,273.87

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Solution

The fourth proportional to 155,272.56, 214,261.23 and 87,273.87 is: 120,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,272.56 : 214,261.23 = 87,273.87 : x
  2. Step 2: Convert to fraction form
    155,272.56/214,261.23 = 87,273.87/x
  3. Step 3: Cross multiply
    155,272.56x = 214,261.23 × 87,273.87
  4. Step 4: Simplify right side
    155,272.56x = 18,699,406,733.06
  5. Step 5: Solve for x
    x = 18,699,406,733.06/155,272.56
  6. Step 6: Final answer
    x = 120,429.56

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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.