Home / 158,829.10-219,195.66-105,020.80

Finding the Fourth Proportional to 158,829.10, 219,195.66 and 105,020.80

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Solution

The fourth proportional to 158,829.10, 219,195.66 and 105,020.80 is: 144,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,829.10 : 219,195.66 = 105,020.80 : x
  2. Step 2: Convert to fraction form
    158,829.10/219,195.66 = 105,020.80/x
  3. Step 3: Cross multiply
    158,829.10x = 219,195.66 × 105,020.80
  4. Step 4: Simplify right side
    158,829.10x = 23,020,103,569.73
  5. Step 5: Solve for x
    x = 23,020,103,569.73/158,829.10
  6. Step 6: Final answer
    x = 144,936.31

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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.