Home / 103,938.40-155,923.88-33,801.28

Finding the Fourth Proportional to 103,938.40, 155,923.88 and 33,801.28

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Solution

The fourth proportional to 103,938.40, 155,923.88 and 33,801.28 is: 50,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,938.40 : 155,923.88 = 33,801.28 : x
  2. Step 2: Convert to fraction form
    103,938.40/155,923.88 = 33,801.28/x
  3. Step 3: Cross multiply
    103,938.40x = 155,923.88 × 33,801.28
  4. Step 4: Simplify right side
    103,938.40x = 5,270,426,726.57
  5. Step 5: Solve for x
    x = 5,270,426,726.57/103,938.40
  6. Step 6: Final answer
    x = 50,707.21

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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.