Home / 102,972.53-142,101.41-57,650.33

Finding the Fourth Proportional to 102,972.53, 142,101.41 and 57,650.33

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Solution

The fourth proportional to 102,972.53, 142,101.41 and 57,650.33 is: 79,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,972.53 : 142,101.41 = 57,650.33 : x
  2. Step 2: Convert to fraction form
    102,972.53/142,101.41 = 57,650.33/x
  3. Step 3: Cross multiply
    102,972.53x = 142,101.41 × 57,650.33
  4. Step 4: Simplify right side
    102,972.53x = 8,192,193,246.97
  5. Step 5: Solve for x
    x = 8,192,193,246.97/102,972.53
  6. Step 6: Final answer
    x = 79,557.07

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1.5x scale

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.