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Finding the Fourth Proportional to 130,336.68, 179,822.80 and 72,967.56

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Solution

The fourth proportional to 130,336.68, 179,822.80 and 72,967.56 is: 100,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,336.68 : 179,822.80 = 72,967.56 : x
  2. Step 2: Convert to fraction form
    130,336.68/179,822.80 = 72,967.56/x
  3. Step 3: Cross multiply
    130,336.68x = 179,822.80 × 72,967.56
  4. Step 4: Simplify right side
    130,336.68x = 13,121,230,365.24
  5. Step 5: Solve for x
    x = 13,121,230,365.24/130,336.68
  6. Step 6: Final answer
    x = 100,671.81

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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.