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Finding the Fourth Proportional to 114,669.60, 172,004.40 and 55,620.60

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Solution

The fourth proportional to 114,669.60, 172,004.40 and 55,620.60 is: 83,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,669.60 : 172,004.40 = 55,620.60 : x
  2. Step 2: Convert to fraction form
    114,669.60/172,004.40 = 55,620.60/x
  3. Step 3: Cross multiply
    114,669.60x = 172,004.40 × 55,620.60
  4. Step 4: Simplify right side
    114,669.60x = 9,566,987,930.64
  5. Step 5: Solve for x
    x = 9,566,987,930.64/114,669.60
  6. Step 6: Final answer
    x = 83,430.90

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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.