Home / 209,817.91-315,001.23-124,584.40

Finding the Fourth Proportional to 209,817.91, 315,001.23 and 124,584.40

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Solution

The fourth proportional to 209,817.91, 315,001.23 and 124,584.40 is: 187,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,817.91 : 315,001.23 = 124,584.40 : x
  2. Step 2: Convert to fraction form
    209,817.91/315,001.23 = 124,584.40/x
  3. Step 3: Cross multiply
    209,817.91x = 315,001.23 × 124,584.40
  4. Step 4: Simplify right side
    209,817.91x = 39,244,239,238.81
  5. Step 5: Solve for x
    x = 39,244,239,238.81/209,817.91
  6. Step 6: Final answer
    x = 187,039.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.