Home / 191,581.45-287,372.00-90,355.89

Finding the Fourth Proportional to 191,581.45, 287,372.00 and 90,355.89

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Solution

The fourth proportional to 191,581.45, 287,372.00 and 90,355.89 is: 135,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,581.45 : 287,372.00 = 90,355.89 : x
  2. Step 2: Convert to fraction form
    191,581.45/287,372.00 = 90,355.89/x
  3. Step 3: Cross multiply
    191,581.45x = 287,372.00 × 90,355.89
  4. Step 4: Simplify right side
    191,581.45x = 25,965,752,508.15
  5. Step 5: Solve for x
    x = 25,965,752,508.15/191,581.45
  6. Step 6: Final answer
    x = 135,533.75

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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.