Home / 100,825.58-139,134.51-55,502.62

Finding the Fourth Proportional to 100,825.58, 139,134.51 and 55,502.62

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Solution

The fourth proportional to 100,825.58, 139,134.51 and 55,502.62 is: 76,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,825.58 : 139,134.51 = 55,502.62 : x
  2. Step 2: Convert to fraction form
    100,825.58/139,134.51 = 55,502.62/x
  3. Step 3: Cross multiply
    100,825.58x = 139,134.51 × 55,502.62
  4. Step 4: Simplify right side
    100,825.58x = 7,722,329,837.42
  5. Step 5: Solve for x
    x = 7,722,329,837.42/100,825.58
  6. Step 6: Final answer
    x = 76,590.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.