Home / 159,363.24-219,919.50-87,741.78

Finding the Fourth Proportional to 159,363.24, 219,919.50 and 87,741.78

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Solution

The fourth proportional to 159,363.24, 219,919.50 and 87,741.78 is: 121,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,363.24 : 219,919.50 = 87,741.78 : x
  2. Step 2: Convert to fraction form
    159,363.24/219,919.50 = 87,741.78/x
  3. Step 3: Cross multiply
    159,363.24x = 219,919.50 × 87,741.78
  4. Step 4: Simplify right side
    159,363.24x = 19,296,128,386.71
  5. Step 5: Solve for x
    x = 19,296,128,386.71/159,363.24
  6. Step 6: Final answer
    x = 121,082.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.