Home / 133,918.16-200,878.68-40,424.72

Finding the Fourth Proportional to 133,918.16, 200,878.68 and 40,424.72

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Solution

The fourth proportional to 133,918.16, 200,878.68 and 40,424.72 is: 60,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,918.16 : 200,878.68 = 40,424.72 : x
  2. Step 2: Convert to fraction form
    133,918.16/200,878.68 = 40,424.72/x
  3. Step 3: Cross multiply
    133,918.16x = 200,878.68 × 40,424.72
  4. Step 4: Simplify right side
    133,918.16x = 8,120,464,392.97
  5. Step 5: Solve for x
    x = 8,120,464,392.97/133,918.16
  6. Step 6: Final answer
    x = 60,637.51

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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.