Home / 159,006.66-219,433.26-87,388.50

Finding the Fourth Proportional to 159,006.66, 219,433.26 and 87,388.50

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Solution

The fourth proportional to 159,006.66, 219,433.26 and 87,388.50 is: 120,598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,006.66 : 219,433.26 = 87,388.50 : x
  2. Step 2: Convert to fraction form
    159,006.66/219,433.26 = 87,388.50/x
  3. Step 3: Cross multiply
    159,006.66x = 219,433.26 × 87,388.50
  4. Step 4: Simplify right side
    159,006.66x = 19,175,943,441.51
  5. Step 5: Solve for x
    x = 19,175,943,441.51/159,006.66
  6. Step 6: Final answer
    x = 120,598.37

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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.