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Finding the Fourth Proportional to 115,203.60, 172,805.40 and 114,037.20

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Solution

The fourth proportional to 115,203.60, 172,805.40 and 114,037.20 is: 171,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,203.60 : 172,805.40 = 114,037.20 : x
  2. Step 2: Convert to fraction form
    115,203.60/172,805.40 = 114,037.20/x
  3. Step 3: Cross multiply
    115,203.60x = 172,805.40 × 114,037.20
  4. Step 4: Simplify right side
    115,203.60x = 19,706,243,960.88
  5. Step 5: Solve for x
    x = 19,706,243,960.88/115,203.60
  6. Step 6: Final answer
    x = 171,055.80

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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.