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Finding the Fourth Proportional to 105,491.73, 158,220.54 and 38,963.19

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Solution

The fourth proportional to 105,491.73, 158,220.54 and 38,963.19 is: 58,438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,491.73 : 158,220.54 = 38,963.19 : x
  2. Step 2: Convert to fraction form
    105,491.73/158,220.54 = 38,963.19/x
  3. Step 3: Cross multiply
    105,491.73x = 158,220.54 × 38,963.19
  4. Step 4: Simplify right side
    105,491.73x = 6,164,777,555.25
  5. Step 5: Solve for x
    x = 6,164,777,555.25/105,491.73
  6. Step 6: Final answer
    x = 58,438.49

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1.5x scale

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.