Home / 159,966.30-220,744.58-99,535.02

Finding the Fourth Proportional to 159,966.30, 220,744.58 and 99,535.02

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Solution

The fourth proportional to 159,966.30, 220,744.58 and 99,535.02 is: 137,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,966.30 : 220,744.58 = 99,535.02 : x
  2. Step 2: Convert to fraction form
    159,966.30/220,744.58 = 99,535.02/x
  3. Step 3: Cross multiply
    159,966.30x = 220,744.58 × 99,535.02
  4. Step 4: Simplify right side
    159,966.30x = 21,971,816,185.19
  5. Step 5: Solve for x
    x = 21,971,816,185.19/159,966.30
  6. Step 6: Final answer
    x = 137,352.78

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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.