Home / 220,123.64-329,998.96-87,097.75

Finding the Fourth Proportional to 220,123.64, 329,998.96 and 87,097.75

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Solution

The fourth proportional to 220,123.64, 329,998.96 and 87,097.75 is: 130,572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,123.64 : 329,998.96 = 87,097.75 : x
  2. Step 2: Convert to fraction form
    220,123.64/329,998.96 = 87,097.75/x
  3. Step 3: Cross multiply
    220,123.64x = 329,998.96 × 87,097.75
  4. Step 4: Simplify right side
    220,123.64x = 28,742,166,202.21
  5. Step 5: Solve for x
    x = 28,742,166,202.21/220,123.64
  6. Step 6: Final answer
    x = 130,572.83

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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.