Home / 126,077.40-188,885.70-102,576.60

Finding the Fourth Proportional to 126,077.40, 188,885.70 and 102,576.60

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Solution

The fourth proportional to 126,077.40, 188,885.70 and 102,576.60 is: 153,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,077.40 : 188,885.70 = 102,576.60 : x
  2. Step 2: Convert to fraction form
    126,077.40/188,885.70 = 102,576.60/x
  3. Step 3: Cross multiply
    126,077.40x = 188,885.70 × 102,576.60
  4. Step 4: Simplify right side
    126,077.40x = 19,375,252,894.62
  5. Step 5: Solve for x
    x = 19,375,252,894.62/126,077.40
  6. Step 6: Final answer
    x = 153,677.45

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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.