Home / 234,209.90-323,209.74-126,779.60

Finding the Fourth Proportional to 234,209.90, 323,209.74 and 126,779.60

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Solution

The fourth proportional to 234,209.90, 323,209.74 and 126,779.60 is: 174,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,209.90 : 323,209.74 = 126,779.60 : x
  2. Step 2: Convert to fraction form
    234,209.90/323,209.74 = 126,779.60/x
  3. Step 3: Cross multiply
    234,209.90x = 323,209.74 × 126,779.60
  4. Step 4: Simplify right side
    234,209.90x = 40,976,401,553.30
  5. Step 5: Solve for x
    x = 40,976,401,553.30/234,209.90
  6. Step 6: Final answer
    x = 174,955.89

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1.5x scale

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.