Home / 217,780.56-326,691.05-84,670.93

Finding the Fourth Proportional to 217,780.56, 326,691.05 and 84,670.93

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Solution

The fourth proportional to 217,780.56, 326,691.05 and 84,670.93 is: 127,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,780.56 : 326,691.05 = 84,670.93 : x
  2. Step 2: Convert to fraction form
    217,780.56/326,691.05 = 84,670.93/x
  3. Step 3: Cross multiply
    217,780.56x = 326,691.05 × 84,670.93
  4. Step 4: Simplify right side
    217,780.56x = 27,661,235,011.19
  5. Step 5: Solve for x
    x = 27,661,235,011.19/217,780.56
  6. Step 6: Final answer
    x = 127,014.25

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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.