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Finding the Fourth Proportional to 101,179.67, 139,752.12 and 75,799.53

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Solution

The fourth proportional to 101,179.67, 139,752.12 and 75,799.53 is: 104,696.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,179.67 : 139,752.12 = 75,799.53 : x
  2. Step 2: Convert to fraction form
    101,179.67/139,752.12 = 75,799.53/x
  3. Step 3: Cross multiply
    101,179.67x = 139,752.12 × 75,799.53
  4. Step 4: Simplify right side
    101,179.67x = 10,593,145,012.50
  5. Step 5: Solve for x
    x = 10,593,145,012.50/101,179.67
  6. Step 6: Final answer
    x = 104,696.38

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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.