Home / 160,811.04-221,846.40-100,396.56

Finding the Fourth Proportional to 160,811.04, 221,846.40 and 100,396.56

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Solution

The fourth proportional to 160,811.04, 221,846.40 and 100,396.56 is: 138,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,811.04 : 221,846.40 = 100,396.56 : x
  2. Step 2: Convert to fraction form
    160,811.04/221,846.40 = 100,396.56/x
  3. Step 3: Cross multiply
    160,811.04x = 221,846.40 × 100,396.56
  4. Step 4: Simplify right side
    160,811.04x = 22,272,615,408.38
  5. Step 5: Solve for x
    x = 22,272,615,408.38/160,811.04
  6. Step 6: Final answer
    x = 138,501.78

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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.