Home / 135,565.65-203,309.60-52,440.21

Finding the Fourth Proportional to 135,565.65, 203,309.60 and 52,440.21

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Solution

The fourth proportional to 135,565.65, 203,309.60 and 52,440.21 is: 78,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,565.65 : 203,309.60 = 52,440.21 : x
  2. Step 2: Convert to fraction form
    135,565.65/203,309.60 = 52,440.21/x
  3. Step 3: Cross multiply
    135,565.65x = 203,309.60 × 52,440.21
  4. Step 4: Simplify right side
    135,565.65x = 10,661,597,856.81
  5. Step 5: Solve for x
    x = 10,661,597,856.81/135,565.65
  6. Step 6: Final answer
    x = 78,645.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.