Home / 102,826.78-154,161.98-71,152.64

Finding the Fourth Proportional to 102,826.78, 154,161.98 and 71,152.64

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Solution

The fourth proportional to 102,826.78, 154,161.98 and 71,152.64 is: 106,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,826.78 : 154,161.98 = 71,152.64 : x
  2. Step 2: Convert to fraction form
    102,826.78/154,161.98 = 71,152.64/x
  3. Step 3: Cross multiply
    102,826.78x = 154,161.98 × 71,152.64
  4. Step 4: Simplify right side
    102,826.78x = 10,969,031,864.63
  5. Step 5: Solve for x
    x = 10,969,031,864.63/102,826.78
  6. Step 6: Final answer
    x = 106,674.86

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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.