Home / 170,930.20-255,897-99,634.72

Finding the Fourth Proportional to 170,930.20, 255,897 and 99,634.72

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Solution

The fourth proportional to 170,930.20, 255,897 and 99,634.72 is: 149,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,930.20 : 255,897 = 99,634.72 : x
  2. Step 2: Convert to fraction form
    170,930.20/255,897 = 99,634.72/x
  3. Step 3: Cross multiply
    170,930.20x = 255,897 × 99,634.72
  4. Step 4: Simplify right side
    170,930.20x = 25,496,225,943.84
  5. Step 5: Solve for x
    x = 25,496,225,943.84/170,930.20
  6. Step 6: Final answer
    x = 149,161.62

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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.