Home / 159,579.66-220,217.30-87,966.35

Finding the Fourth Proportional to 159,579.66, 220,217.30 and 87,966.35

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Solution

The fourth proportional to 159,579.66, 220,217.30 and 87,966.35 is: 121,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,579.66 : 220,217.30 = 87,966.35 : x
  2. Step 2: Convert to fraction form
    159,579.66/220,217.30 = 87,966.35/x
  3. Step 3: Cross multiply
    159,579.66x = 220,217.30 × 87,966.35
  4. Step 4: Simplify right side
    159,579.66x = 19,371,710,546.94
  5. Step 5: Solve for x
    x = 19,371,710,546.94/159,579.66
  6. Step 6: Final answer
    x = 121,392.10

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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.