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Finding the Fourth Proportional to 101,651.80, 140,283.96 and 56,329.66

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Solution

The fourth proportional to 101,651.80, 140,283.96 and 56,329.66 is: 77,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,651.80 : 140,283.96 = 56,329.66 : x
  2. Step 2: Convert to fraction form
    101,651.80/140,283.96 = 56,329.66/x
  3. Step 3: Cross multiply
    101,651.80x = 140,283.96 × 56,329.66
  4. Step 4: Simplify right side
    101,651.80x = 7,902,147,770.25
  5. Step 5: Solve for x
    x = 7,902,147,770.25/101,651.80
  6. Step 6: Final answer
    x = 77,737.41

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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.