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Finding the Fourth Proportional to 115,035.60, 172,164.60 and 101,038.80

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Solution

The fourth proportional to 115,035.60, 172,164.60 and 101,038.80 is: 151,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,035.60 : 172,164.60 = 101,038.80 : x
  2. Step 2: Convert to fraction form
    115,035.60/172,164.60 = 101,038.80/x
  3. Step 3: Cross multiply
    115,035.60x = 172,164.60 × 101,038.80
  4. Step 4: Simplify right side
    115,035.60x = 17,395,304,586.48
  5. Step 5: Solve for x
    x = 17,395,304,586.48/115,035.60
  6. Step 6: Final answer
    x = 151,216.71

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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.