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Finding the Fourth Proportional to 101,160.87, 139,602.01 and 55,838.86

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Solution

The fourth proportional to 101,160.87, 139,602.01 and 55,838.86 is: 77,057.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,160.87 : 139,602.01 = 55,838.86 : x
  2. Step 2: Convert to fraction form
    101,160.87/139,602.01 = 55,838.86/x
  3. Step 3: Cross multiply
    101,160.87x = 139,602.01 × 55,838.86
  4. Step 4: Simplify right side
    101,160.87x = 7,795,217,388.77
  5. Step 5: Solve for x
    x = 7,795,217,388.77/101,160.87
  6. Step 6: Final answer
    x = 77,057.63

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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.