Home / 162,003.60-243,126.90-83,077.20

Finding the Fourth Proportional to 162,003.60, 243,126.90 and 83,077.20

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Solution

The fourth proportional to 162,003.60, 243,126.90 and 83,077.20 is: 124,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.60 : 243,126.90 = 83,077.20 : x
  2. Step 2: Convert to fraction form
    162,003.60/243,126.90 = 83,077.20/x
  3. Step 3: Cross multiply
    162,003.60x = 243,126.90 × 83,077.20
  4. Step 4: Simplify right side
    162,003.60x = 20,198,302,096.68
  5. Step 5: Solve for x
    x = 20,198,302,096.68/162,003.60
  6. Step 6: Final answer
    x = 124,678.11

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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.