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Finding the Fourth Proportional to 99,954, 149,814.36 and 55,559.52

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Solution

The fourth proportional to 99,954, 149,814.36 and 55,559.52 is: 83,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954 : 149,814.36 = 55,559.52 : x
  2. Step 2: Convert to fraction form
    99,954/149,814.36 = 55,559.52/x
  3. Step 3: Cross multiply
    99,954x = 149,814.36 × 55,559.52
  4. Step 4: Simplify right side
    99,954x = 8,323,613,930.71
  5. Step 5: Solve for x
    x = 8,323,613,930.71/99,954
  6. Step 6: Final answer
    x = 83,274.45

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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.