Home / 162,076.13-243,036.40-76,615.86

Finding the Fourth Proportional to 162,076.13, 243,036.40 and 76,615.86

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Solution

The fourth proportional to 162,076.13, 243,036.40 and 76,615.86 is: 114,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,076.13 : 243,036.40 = 76,615.86 : x
  2. Step 2: Convert to fraction form
    162,076.13/243,036.40 = 76,615.86/x
  3. Step 3: Cross multiply
    162,076.13x = 243,036.40 × 76,615.86
  4. Step 4: Simplify right side
    162,076.13x = 18,620,442,797.30
  5. Step 5: Solve for x
    x = 18,620,442,797.30/162,076.13
  6. Step 6: Final answer
    x = 114,887.02

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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.