Home / 171,184.20-256,837.05-76,405.74

Finding the Fourth Proportional to 171,184.20, 256,837.05 and 76,405.74

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Solution

The fourth proportional to 171,184.20, 256,837.05 and 76,405.74 is: 114,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,184.20 : 256,837.05 = 76,405.74 : x
  2. Step 2: Convert to fraction form
    171,184.20/256,837.05 = 76,405.74/x
  3. Step 3: Cross multiply
    171,184.20x = 256,837.05 × 76,405.74
  4. Step 4: Simplify right side
    171,184.20x = 19,623,824,864.67
  5. Step 5: Solve for x
    x = 19,623,824,864.67/171,184.20
  6. Step 6: Final answer
    x = 114,635.72

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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.