Home / 215,799.39-323,699.09-91,141.47

Finding the Fourth Proportional to 215,799.39, 323,699.09 and 91,141.47

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Solution

The fourth proportional to 215,799.39, 323,699.09 and 91,141.47 is: 136,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,799.39 : 323,699.09 = 91,141.47 : x
  2. Step 2: Convert to fraction form
    215,799.39/323,699.09 = 91,141.47/x
  3. Step 3: Cross multiply
    215,799.39x = 323,699.09 × 91,141.47
  4. Step 4: Simplify right side
    215,799.39x = 29,502,410,444.56
  5. Step 5: Solve for x
    x = 29,502,410,444.56/215,799.39
  6. Step 6: Final answer
    x = 136,712.21

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1.5x scale

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.