Home / 217,577.19-326,381.05-91,089.77

Finding the Fourth Proportional to 217,577.19, 326,381.05 and 91,089.77

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Solution

The fourth proportional to 217,577.19, 326,381.05 and 91,089.77 is: 136,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,577.19 : 326,381.05 = 91,089.77 : x
  2. Step 2: Convert to fraction form
    217,577.19/326,381.05 = 91,089.77/x
  3. Step 3: Cross multiply
    217,577.19x = 326,381.05 × 91,089.77
  4. Step 4: Simplify right side
    217,577.19x = 29,729,972,746.44
  5. Step 5: Solve for x
    x = 29,729,972,746.44/217,577.19
  6. Step 6: Final answer
    x = 136,641.04

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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.