Home / 161,905.04-242,818.36-82,978.64

Finding the Fourth Proportional to 161,905.04, 242,818.36 and 82,978.64

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Solution

The fourth proportional to 161,905.04, 242,818.36 and 82,978.64 is: 124,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,905.04 : 242,818.36 = 82,978.64 : x
  2. Step 2: Convert to fraction form
    161,905.04/242,818.36 = 82,978.64/x
  3. Step 3: Cross multiply
    161,905.04x = 242,818.36 × 82,978.64
  4. Step 4: Simplify right side
    161,905.04x = 20,148,737,279.83
  5. Step 5: Solve for x
    x = 20,148,737,279.83/161,905.04
  6. Step 6: Final answer
    x = 124,447.87

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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.