Home / 147,190.50-203,144.76-86,741.82

Finding the Fourth Proportional to 147,190.50, 203,144.76 and 86,741.82

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Solution

The fourth proportional to 147,190.50, 203,144.76 and 86,741.82 is: 119,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,190.50 : 203,144.76 = 86,741.82 : x
  2. Step 2: Convert to fraction form
    147,190.50/203,144.76 = 86,741.82/x
  3. Step 3: Cross multiply
    147,190.50x = 203,144.76 × 86,741.82
  4. Step 4: Simplify right side
    147,190.50x = 17,621,146,205.86
  5. Step 5: Solve for x
    x = 17,621,146,205.86/147,190.50
  6. Step 6: Final answer
    x = 119,716.60

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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.