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Finding the Fourth Proportional to 115,104.60, 172,675.80 and 36,199.80

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Solution

The fourth proportional to 115,104.60, 172,675.80 and 36,199.80 is: 54,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,104.60 : 172,675.80 = 36,199.80 : x
  2. Step 2: Convert to fraction form
    115,104.60/172,675.80 = 36,199.80/x
  3. Step 3: Cross multiply
    115,104.60x = 172,675.80 × 36,199.80
  4. Step 4: Simplify right side
    115,104.60x = 6,250,829,424.84
  5. Step 5: Solve for x
    x = 6,250,829,424.84/115,104.60
  6. Step 6: Final answer
    x = 54,305.64

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1.5x scale

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.