Home / 162,265.20-243,489.42-87,383.76

Finding the Fourth Proportional to 162,265.20, 243,489.42 and 87,383.76

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Solution

The fourth proportional to 162,265.20, 243,489.42 and 87,383.76 is: 131,124.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,265.20 : 243,489.42 = 87,383.76 : x
  2. Step 2: Convert to fraction form
    162,265.20/243,489.42 = 87,383.76/x
  3. Step 3: Cross multiply
    162,265.20x = 243,489.42 × 87,383.76
  4. Step 4: Simplify right side
    162,265.20x = 21,277,021,039.82
  5. Step 5: Solve for x
    x = 21,277,021,039.82/162,265.20
  6. Step 6: Final answer
    x = 131,124.98

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1.5x scale

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.