Home / 102,590.38-154,156.20-55,240.48

Finding the Fourth Proportional to 102,590.38, 154,156.20 and 55,240.48

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Solution

The fourth proportional to 102,590.38, 154,156.20 and 55,240.48 is: 83,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,590.38 : 154,156.20 = 55,240.48 : x
  2. Step 2: Convert to fraction form
    102,590.38/154,156.20 = 55,240.48/x
  3. Step 3: Cross multiply
    102,590.38x = 154,156.20 × 55,240.48
  4. Step 4: Simplify right side
    102,590.38x = 8,515,662,482.98
  5. Step 5: Solve for x
    x = 8,515,662,482.98/102,590.38
  6. Step 6: Final answer
    x = 83,006.44

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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.