Home / 105,710.70-158,562.97-39,149.35

Finding the Fourth Proportional to 105,710.70, 158,562.97 and 39,149.35

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Solution

The fourth proportional to 105,710.70, 158,562.97 and 39,149.35 is: 58,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,710.70 : 158,562.97 = 39,149.35 : x
  2. Step 2: Convert to fraction form
    105,710.70/158,562.97 = 39,149.35/x
  3. Step 3: Cross multiply
    105,710.70x = 158,562.97 × 39,149.35
  4. Step 4: Simplify right side
    105,710.70x = 6,207,637,161.25
  5. Step 5: Solve for x
    x = 6,207,637,161.25/105,710.70
  6. Step 6: Final answer
    x = 58,722.89

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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.