Home / 102,353.43-153,557.78-31,274.12

Finding the Fourth Proportional to 102,353.43, 153,557.78 and 31,274.12

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Solution

The fourth proportional to 102,353.43, 153,557.78 and 31,274.12 is: 46,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,353.43 : 153,557.78 = 31,274.12 : x
  2. Step 2: Convert to fraction form
    102,353.43/153,557.78 = 31,274.12/x
  3. Step 3: Cross multiply
    102,353.43x = 153,557.78 × 31,274.12
  4. Step 4: Simplify right side
    102,353.43x = 4,802,384,909.05
  5. Step 5: Solve for x
    x = 4,802,384,909.05/102,353.43
  6. Step 6: Final answer
    x = 46,919.63

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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.