Home / 135,548.32-203,231.76-52,345.12

Finding the Fourth Proportional to 135,548.32, 203,231.76 and 52,345.12

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Solution

The fourth proportional to 135,548.32, 203,231.76 and 52,345.12 is: 78,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,548.32 : 203,231.76 = 52,345.12 : x
  2. Step 2: Convert to fraction form
    135,548.32/203,231.76 = 52,345.12/x
  3. Step 3: Cross multiply
    135,548.32x = 203,231.76 × 52,345.12
  4. Step 4: Simplify right side
    135,548.32x = 10,638,190,865.01
  5. Step 5: Solve for x
    x = 10,638,190,865.01/135,548.32
  6. Step 6: Final answer
    x = 78,482.65

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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.