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Finding the Fourth Proportional to 101,601.75, 140,208.94 and 56,279.59

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Solution

The fourth proportional to 101,601.75, 140,208.94 and 56,279.59 is: 77,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,601.75 : 140,208.94 = 56,279.59 : x
  2. Step 2: Convert to fraction form
    101,601.75/140,208.94 = 56,279.59/x
  3. Step 3: Cross multiply
    101,601.75x = 140,208.94 × 56,279.59
  4. Step 4: Simplify right side
    101,601.75x = 7,890,901,657.53
  5. Step 5: Solve for x
    x = 7,890,901,657.53/101,601.75
  6. Step 6: Final answer
    x = 77,665.02

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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.