Home / 102,814.20-154,221.30-61,342.20

Finding the Fourth Proportional to 102,814.20, 154,221.30 and 61,342.20

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Solution

The fourth proportional to 102,814.20, 154,221.30 and 61,342.20 is: 92,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,814.20 : 154,221.30 = 61,342.20 : x
  2. Step 2: Convert to fraction form
    102,814.20/154,221.30 = 61,342.20/x
  3. Step 3: Cross multiply
    102,814.20x = 154,221.30 × 61,342.20
  4. Step 4: Simplify right side
    102,814.20x = 9,460,273,828.86
  5. Step 5: Solve for x
    x = 9,460,273,828.86/102,814.20
  6. Step 6: Final answer
    x = 92,013.30

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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.