Home / 236,784.31-326,757-129,354.82

Finding the Fourth Proportional to 236,784.31, 326,757 and 129,354.82

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Solution

The fourth proportional to 236,784.31, 326,757 and 129,354.82 is: 178,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,784.31 : 326,757 = 129,354.82 : x
  2. Step 2: Convert to fraction form
    236,784.31/326,757 = 129,354.82/x
  3. Step 3: Cross multiply
    236,784.31x = 326,757 × 129,354.82
  4. Step 4: Simplify right side
    236,784.31x = 42,267,592,918.74
  5. Step 5: Solve for x
    x = 42,267,592,918.74/236,784.31
  6. Step 6: Final answer
    x = 178,506.73

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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.