Home / 100,914.03-139,250.90-62,145.70

Finding the Fourth Proportional to 100,914.03, 139,250.90 and 62,145.70

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Solution

The fourth proportional to 100,914.03, 139,250.90 and 62,145.70 is: 85,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.03 : 139,250.90 = 62,145.70 : x
  2. Step 2: Convert to fraction form
    100,914.03/139,250.90 = 62,145.70/x
  3. Step 3: Cross multiply
    100,914.03x = 139,250.90 × 62,145.70
  4. Step 4: Simplify right side
    100,914.03x = 8,653,844,656.13
  5. Step 5: Solve for x
    x = 8,653,844,656.13/100,914.03
  6. Step 6: Final answer
    x = 85,754.62

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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.