Home / 135,027.10-202,540.65-128,466.10

Finding the Fourth Proportional to 135,027.10, 202,540.65 and 128,466.10

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Solution

The fourth proportional to 135,027.10, 202,540.65 and 128,466.10 is: 192,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,027.10 : 202,540.65 = 128,466.10 : x
  2. Step 2: Convert to fraction form
    135,027.10/202,540.65 = 128,466.10/x
  3. Step 3: Cross multiply
    135,027.10x = 202,540.65 × 128,466.10
  4. Step 4: Simplify right side
    135,027.10x = 26,019,607,396.97
  5. Step 5: Solve for x
    x = 26,019,607,396.97/135,027.10
  6. Step 6: Final answer
    x = 192,699.15

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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.