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Finding the Fourth Proportional to 115,027.60, 172,152.60 and 101,030.80

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Solution

The fourth proportional to 115,027.60, 172,152.60 and 101,030.80 is: 151,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.60 : 172,152.60 = 101,030.80 : x
  2. Step 2: Convert to fraction form
    115,027.60/172,152.60 = 101,030.80/x
  3. Step 3: Cross multiply
    115,027.60x = 172,152.60 × 101,030.80
  4. Step 4: Simplify right side
    115,027.60x = 17,392,714,900.08
  5. Step 5: Solve for x
    x = 17,392,714,900.08/115,027.60
  6. Step 6: Final answer
    x = 151,204.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.