Home / 206,742.46-285,349.06-126,152.72

Finding the Fourth Proportional to 206,742.46, 285,349.06 and 126,152.72

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Solution

The fourth proportional to 206,742.46, 285,349.06 and 126,152.72 is: 174,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,742.46 : 285,349.06 = 126,152.72 : x
  2. Step 2: Convert to fraction form
    206,742.46/285,349.06 = 126,152.72/x
  3. Step 3: Cross multiply
    206,742.46x = 285,349.06 × 126,152.72
  4. Step 4: Simplify right side
    206,742.46x = 35,997,560,068.44
  5. Step 5: Solve for x
    x = 35,997,560,068.44/206,742.46
  6. Step 6: Final answer
    x = 174,117.89

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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.