Home / 135,015.30-202,332.78-103,302.59

Finding the Fourth Proportional to 135,015.30, 202,332.78 and 103,302.59

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Solution

The fourth proportional to 135,015.30, 202,332.78 and 103,302.59 is: 154,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,015.30 : 202,332.78 = 103,302.59 : x
  2. Step 2: Convert to fraction form
    135,015.30/202,332.78 = 103,302.59/x
  3. Step 3: Cross multiply
    135,015.30x = 202,332.78 × 103,302.59
  4. Step 4: Simplify right side
    135,015.30x = 20,901,499,204.24
  5. Step 5: Solve for x
    x = 20,901,499,204.24/135,015.30
  6. Step 6: Final answer
    x = 154,808.38

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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.