Home / 217,530.95-326,311.97-91,043.91

Finding the Fourth Proportional to 217,530.95, 326,311.97 and 91,043.91

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Solution

The fourth proportional to 217,530.95, 326,311.97 and 91,043.91 is: 136,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,530.95 : 326,311.97 = 91,043.91 : x
  2. Step 2: Convert to fraction form
    217,530.95/326,311.97 = 91,043.91/x
  3. Step 3: Cross multiply
    217,530.95x = 326,311.97 × 91,043.91
  4. Step 4: Simplify right side
    217,530.95x = 29,708,717,173.38
  5. Step 5: Solve for x
    x = 29,708,717,173.38/217,530.95
  6. Step 6: Final answer
    x = 136,572.37

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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.