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Finding the Fourth Proportional to 111,754.48, 154,221.17 and 61,453.48

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Solution

The fourth proportional to 111,754.48, 154,221.17 and 61,453.48 is: 84,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,754.48 : 154,221.17 = 61,453.48 : x
  2. Step 2: Convert to fraction form
    111,754.48/154,221.17 = 61,453.48/x
  3. Step 3: Cross multiply
    111,754.48x = 154,221.17 × 61,453.48
  4. Step 4: Simplify right side
    111,754.48x = 9,477,427,586.17
  5. Step 5: Solve for x
    x = 9,477,427,586.17/111,754.48
  6. Step 6: Final answer
    x = 84,805.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.