Home / 159,136.29-219,579.66-90,226.08

Finding the Fourth Proportional to 159,136.29, 219,579.66 and 90,226.08

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Solution

The fourth proportional to 159,136.29, 219,579.66 and 90,226.08 is: 124,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,136.29 : 219,579.66 = 90,226.08 : x
  2. Step 2: Convert to fraction form
    159,136.29/219,579.66 = 90,226.08/x
  3. Step 3: Cross multiply
    159,136.29x = 219,579.66 × 90,226.08
  4. Step 4: Simplify right side
    159,136.29x = 19,811,811,969.53
  5. Step 5: Solve for x
    x = 19,811,811,969.53/159,136.29
  6. Step 6: Final answer
    x = 124,495.88

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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.