Home / 103,204.94-142,424-57,265.42

Finding the Fourth Proportional to 103,204.94, 142,424 and 57,265.42

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Solution

The fourth proportional to 103,204.94, 142,424 and 57,265.42 is: 79,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,204.94 : 142,424 = 57,265.42 : x
  2. Step 2: Convert to fraction form
    103,204.94/142,424 = 57,265.42/x
  3. Step 3: Cross multiply
    103,204.94x = 142,424 × 57,265.42
  4. Step 4: Simplify right side
    103,204.94x = 8,155,970,178.08
  5. Step 5: Solve for x
    x = 8,155,970,178.08/103,204.94
  6. Step 6: Final answer
    x = 79,026.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.