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Finding the Fourth Proportional to 115,237.40, 172,786.98 and 45,033.08

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Solution

The fourth proportional to 115,237.40, 172,786.98 and 45,033.08 is: 67,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,237.40 : 172,786.98 = 45,033.08 : x
  2. Step 2: Convert to fraction form
    115,237.40/172,786.98 = 45,033.08/x
  3. Step 3: Cross multiply
    115,237.40x = 172,786.98 × 45,033.08
  4. Step 4: Simplify right side
    115,237.40x = 7,781,129,893.30
  5. Step 5: Solve for x
    x = 7,781,129,893.30/115,237.40
  6. Step 6: Final answer
    x = 67,522.61

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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.