Home / 135,440.04-203,082.28-72,182.28

Finding the Fourth Proportional to 135,440.04, 203,082.28 and 72,182.28

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Solution

The fourth proportional to 135,440.04, 203,082.28 and 72,182.28 is: 108,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,440.04 : 203,082.28 = 72,182.28 : x
  2. Step 2: Convert to fraction form
    135,440.04/203,082.28 = 72,182.28/x
  3. Step 3: Cross multiply
    135,440.04x = 203,082.28 × 72,182.28
  4. Step 4: Simplify right side
    135,440.04x = 14,658,941,998.00
  5. Step 5: Solve for x
    x = 14,658,941,998.00/135,440.04
  6. Step 6: Final answer
    x = 108,231.97

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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.