Home / 215,844.16-323,688.48-91,194.88

Finding the Fourth Proportional to 215,844.16, 323,688.48 and 91,194.88

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Solution

The fourth proportional to 215,844.16, 323,688.48 and 91,194.88 is: 136,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,844.16 : 323,688.48 = 91,194.88 : x
  2. Step 2: Convert to fraction form
    215,844.16/323,688.48 = 91,194.88/x
  3. Step 3: Cross multiply
    215,844.16x = 323,688.48 × 91,194.88
  4. Step 4: Simplify right side
    215,844.16x = 29,518,732,090.98
  5. Step 5: Solve for x
    x = 29,518,732,090.98/215,844.16
  6. Step 6: Final answer
    x = 136,759.47

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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.