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Finding the Fourth Proportional to 102,627.99, 153,986.33 and 55,187.63

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Solution

The fourth proportional to 102,627.99, 153,986.33 and 55,187.63 is: 82,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,627.99 : 153,986.33 = 55,187.63 : x
  2. Step 2: Convert to fraction form
    102,627.99/153,986.33 = 55,187.63/x
  3. Step 3: Cross multiply
    102,627.99x = 153,986.33 × 55,187.63
  4. Step 4: Simplify right side
    102,627.99x = 8,498,140,343.63
  5. Step 5: Solve for x
    x = 8,498,140,343.63/102,627.99
  6. Step 6: Final answer
    x = 82,805.29

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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.