Home / 135,973.80-203,960.86-42,480.04

Finding the Fourth Proportional to 135,973.80, 203,960.86 and 42,480.04

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Solution

The fourth proportional to 135,973.80, 203,960.86 and 42,480.04 is: 63,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,973.80 : 203,960.86 = 42,480.04 : x
  2. Step 2: Convert to fraction form
    135,973.80/203,960.86 = 42,480.04/x
  3. Step 3: Cross multiply
    135,973.80x = 203,960.86 × 42,480.04
  4. Step 4: Simplify right side
    135,973.80x = 8,664,265,491.23
  5. Step 5: Solve for x
    x = 8,664,265,491.23/135,973.80
  6. Step 6: Final answer
    x = 63,720.11

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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.