Home / 228,784.85-315,742.01-126,842.30

Finding the Fourth Proportional to 228,784.85, 315,742.01 and 126,842.30

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Solution

The fourth proportional to 228,784.85, 315,742.01 and 126,842.30 is: 175,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,784.85 : 315,742.01 = 126,842.30 : x
  2. Step 2: Convert to fraction form
    228,784.85/315,742.01 = 126,842.30/x
  3. Step 3: Cross multiply
    228,784.85x = 315,742.01 × 126,842.30
  4. Step 4: Simplify right side
    228,784.85x = 40,049,440,542.10
  5. Step 5: Solve for x
    x = 40,049,440,542.10/228,784.85
  6. Step 6: Final answer
    x = 175,052.86

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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.