Home / 135,292.12-203,008.18-98,158.69

Finding the Fourth Proportional to 135,292.12, 203,008.18 and 98,158.69

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Solution

The fourth proportional to 135,292.12, 203,008.18 and 98,158.69 is: 147,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,292.12 : 203,008.18 = 98,158.69 : x
  2. Step 2: Convert to fraction form
    135,292.12/203,008.18 = 98,158.69/x
  3. Step 3: Cross multiply
    135,292.12x = 203,008.18 × 98,158.69
  4. Step 4: Simplify right side
    135,292.12x = 19,927,016,127.59
  5. Step 5: Solve for x
    x = 19,927,016,127.59/135,292.12
  6. Step 6: Final answer
    x = 147,288.81

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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.