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Finding the Fourth Proportional to 101,165.58, 139,608.53 and 55,843.60

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Solution

The fourth proportional to 101,165.58, 139,608.53 and 55,843.60 is: 77,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,165.58 : 139,608.53 = 55,843.60 : x
  2. Step 2: Convert to fraction form
    101,165.58/139,608.53 = 55,843.60/x
  3. Step 3: Cross multiply
    101,165.58x = 139,608.53 × 55,843.60
  4. Step 4: Simplify right side
    101,165.58x = 7,796,242,905.91
  5. Step 5: Solve for x
    x = 7,796,242,905.91/101,165.58
  6. Step 6: Final answer
    x = 77,064.18

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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.