Home / 159,715.45-220,296.81-129,502.06

Finding the Fourth Proportional to 159,715.45, 220,296.81 and 129,502.06

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Solution

The fourth proportional to 159,715.45, 220,296.81 and 129,502.06 is: 178,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,715.45 : 220,296.81 = 129,502.06 : x
  2. Step 2: Convert to fraction form
    159,715.45/220,296.81 = 129,502.06/x
  3. Step 3: Cross multiply
    159,715.45x = 220,296.81 × 129,502.06
  4. Step 4: Simplify right side
    159,715.45x = 28,528,890,706.43
  5. Step 5: Solve for x
    x = 28,528,890,706.43/159,715.45
  6. Step 6: Final answer
    x = 178,623.24

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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.