Home / 161,621.10-242,318.94-71,614.86

Finding the Fourth Proportional to 161,621.10, 242,318.94 and 71,614.86

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Solution

The fourth proportional to 161,621.10, 242,318.94 and 71,614.86 is: 107,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,621.10 : 242,318.94 = 71,614.86 : x
  2. Step 2: Convert to fraction form
    161,621.10/242,318.94 = 71,614.86/x
  3. Step 3: Cross multiply
    161,621.10x = 242,318.94 × 71,614.86
  4. Step 4: Simplify right side
    161,621.10x = 17,353,636,963.45
  5. Step 5: Solve for x
    x = 17,353,636,963.45/161,621.10
  6. Step 6: Final answer
    x = 107,372.35

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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.