Home / 236,872.21-326,869.77-129,443.08

Finding the Fourth Proportional to 236,872.21, 326,869.77 and 129,443.08

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Solution

The fourth proportional to 236,872.21, 326,869.77 and 129,443.08 is: 178,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,872.21 : 326,869.77 = 129,443.08 : x
  2. Step 2: Convert to fraction form
    236,872.21/326,869.77 = 129,443.08/x
  3. Step 3: Cross multiply
    236,872.21x = 326,869.77 × 129,443.08
  4. Step 4: Simplify right side
    236,872.21x = 42,311,029,787.69
  5. Step 5: Solve for x
    x = 42,311,029,787.69/236,872.21
  6. Step 6: Final answer
    x = 178,623.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.