Home / 140,269.70-210,715.94-87,001.05

Finding the Fourth Proportional to 140,269.70, 210,715.94 and 87,001.05

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Solution

The fourth proportional to 140,269.70, 210,715.94 and 87,001.05 is: 130,694.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,269.70 : 210,715.94 = 87,001.05 : x
  2. Step 2: Convert to fraction form
    140,269.70/210,715.94 = 87,001.05/x
  3. Step 3: Cross multiply
    140,269.70x = 210,715.94 × 87,001.05
  4. Step 4: Simplify right side
    140,269.70x = 18,332,508,031.74
  5. Step 5: Solve for x
    x = 18,332,508,031.74/140,269.70
  6. Step 6: Final answer
    x = 130,694.71

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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.