Home / 162,729-243,939.60-122,685.84

Finding the Fourth Proportional to 162,729, 243,939.60 and 122,685.84

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Solution

The fourth proportional to 162,729, 243,939.60 and 122,685.84 is: 183,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,729 : 243,939.60 = 122,685.84 : x
  2. Step 2: Convert to fraction form
    162,729/243,939.60 = 122,685.84/x
  3. Step 3: Cross multiply
    162,729x = 243,939.60 × 122,685.84
  4. Step 4: Simplify right side
    162,729x = 29,927,934,735.26
  5. Step 5: Solve for x
    x = 29,927,934,735.26/162,729
  6. Step 6: Final answer
    x = 183,912.73

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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.