Home / 102,395.25-141,288.30-57,063.28

Finding the Fourth Proportional to 102,395.25, 141,288.30 and 57,063.28

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Solution

The fourth proportional to 102,395.25, 141,288.30 and 57,063.28 is: 78,737.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,395.25 : 141,288.30 = 57,063.28 : x
  2. Step 2: Convert to fraction form
    102,395.25/141,288.30 = 57,063.28/x
  3. Step 3: Cross multiply
    102,395.25x = 141,288.30 × 57,063.28
  4. Step 4: Simplify right side
    102,395.25x = 8,062,373,823.62
  5. Step 5: Solve for x
    x = 8,062,373,823.62/102,395.25
  6. Step 6: Final answer
    x = 78,737.77

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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.