Home / 224,066.78-335,840.16-90,781.28

Finding the Fourth Proportional to 224,066.78, 335,840.16 and 90,781.28

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Solution

The fourth proportional to 224,066.78, 335,840.16 and 90,781.28 is: 136,066.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,066.78 : 335,840.16 = 90,781.28 : x
  2. Step 2: Convert to fraction form
    224,066.78/335,840.16 = 90,781.28/x
  3. Step 3: Cross multiply
    224,066.78x = 335,840.16 × 90,781.28
  4. Step 4: Simplify right side
    224,066.78x = 30,487,999,600.20
  5. Step 5: Solve for x
    x = 30,487,999,600.20/224,066.78
  6. Step 6: Final answer
    x = 136,066.58

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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.