Home / 103,686.72-155,512.80-33,555.84

Finding the Fourth Proportional to 103,686.72, 155,512.80 and 33,555.84

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Solution

The fourth proportional to 103,686.72, 155,512.80 and 33,555.84 is: 50,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.72 : 155,512.80 = 33,555.84 : x
  2. Step 2: Convert to fraction form
    103,686.72/155,512.80 = 33,555.84/x
  3. Step 3: Cross multiply
    103,686.72x = 155,512.80 × 33,555.84
  4. Step 4: Simplify right side
    103,686.72x = 5,218,362,634.75
  5. Step 5: Solve for x
    x = 5,218,362,634.75/103,686.72
  6. Step 6: Final answer
    x = 50,328.17

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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.