Home / 154,380.22-213,056.17-86,404.02

Finding the Fourth Proportional to 154,380.22, 213,056.17 and 86,404.02

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Solution

The fourth proportional to 154,380.22, 213,056.17 and 86,404.02 is: 119,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,380.22 : 213,056.17 = 86,404.02 : x
  2. Step 2: Convert to fraction form
    154,380.22/213,056.17 = 86,404.02/x
  3. Step 3: Cross multiply
    154,380.22x = 213,056.17 × 86,404.02
  4. Step 4: Simplify right side
    154,380.22x = 18,408,909,573.80
  5. Step 5: Solve for x
    x = 18,408,909,573.80/154,380.22
  6. Step 6: Final answer
    x = 119,243.97

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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.