Home / 105,821.43-158,731.65-38,337.66

Finding the Fourth Proportional to 105,821.43, 158,731.65 and 38,337.66

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Solution

The fourth proportional to 105,821.43, 158,731.65 and 38,337.66 is: 57,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,821.43 : 158,731.65 = 38,337.66 : x
  2. Step 2: Convert to fraction form
    105,821.43/158,731.65 = 38,337.66/x
  3. Step 3: Cross multiply
    105,821.43x = 158,731.65 × 38,337.66
  4. Step 4: Simplify right side
    105,821.43x = 6,085,400,028.94
  5. Step 5: Solve for x
    x = 6,085,400,028.94/105,821.43
  6. Step 6: Final answer
    x = 57,506.31

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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.