Home / 342,823.72-514,269.61-126,739.09

Finding the Fourth Proportional to 342,823.72, 514,269.61 and 126,739.09

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Solution

The fourth proportional to 342,823.72, 514,269.61 and 126,739.09 is: 190,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,823.72 : 514,269.61 = 126,739.09 : x
  2. Step 2: Convert to fraction form
    342,823.72/514,269.61 = 126,739.09/x
  3. Step 3: Cross multiply
    342,823.72x = 514,269.61 × 126,739.09
  4. Step 4: Simplify right side
    342,823.72x = 65,178,061,752.36
  5. Step 5: Solve for x
    x = 65,178,061,752.36/342,823.72
  6. Step 6: Final answer
    x = 190,121.21

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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.