Home / 161,719.20-242,622.54-91,647.72

Finding the Fourth Proportional to 161,719.20, 242,622.54 and 91,647.72

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Solution

The fourth proportional to 161,719.20, 242,622.54 and 91,647.72 is: 137,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,719.20 : 242,622.54 = 91,647.72 : x
  2. Step 2: Convert to fraction form
    161,719.20/242,622.54 = 91,647.72/x
  3. Step 3: Cross multiply
    161,719.20x = 242,622.54 × 91,647.72
  4. Step 4: Simplify right side
    161,719.20x = 22,235,802,611.61
  5. Step 5: Solve for x
    x = 22,235,802,611.61/161,719.20
  6. Step 6: Final answer
    x = 137,496.37

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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.