Home / 135,729.16-203,591.58-42,240.04

Finding the Fourth Proportional to 135,729.16, 203,591.58 and 42,240.04

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Solution

The fourth proportional to 135,729.16, 203,591.58 and 42,240.04 is: 63,359.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,729.16 : 203,591.58 = 42,240.04 : x
  2. Step 2: Convert to fraction form
    135,729.16/203,591.58 = 42,240.04/x
  3. Step 3: Cross multiply
    135,729.16x = 203,591.58 × 42,240.04
  4. Step 4: Simplify right side
    135,729.16x = 8,599,716,482.86
  5. Step 5: Solve for x
    x = 8,599,716,482.86/135,729.16
  6. Step 6: Final answer
    x = 63,359.39

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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.