Home / 147,391.56-203,342.60-90,704.52

Finding the Fourth Proportional to 147,391.56, 203,342.60 and 90,704.52

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Solution

The fourth proportional to 147,391.56, 203,342.60 and 90,704.52 is: 125,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,391.56 : 203,342.60 = 90,704.52 : x
  2. Step 2: Convert to fraction form
    147,391.56/203,342.60 = 90,704.52/x
  3. Step 3: Cross multiply
    147,391.56x = 203,342.60 × 90,704.52
  4. Step 4: Simplify right side
    147,391.56x = 18,444,092,928.55
  5. Step 5: Solve for x
    x = 18,444,092,928.55/147,391.56
  6. Step 6: Final answer
    x = 125,136.70

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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.