Home / 99,453.90-137,242.14-54,131.94

Finding the Fourth Proportional to 99,453.90, 137,242.14 and 54,131.94

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Solution

The fourth proportional to 99,453.90, 137,242.14 and 54,131.94 is: 74,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,453.90 : 137,242.14 = 54,131.94 : x
  2. Step 2: Convert to fraction form
    99,453.90/137,242.14 = 54,131.94/x
  3. Step 3: Cross multiply
    99,453.90x = 137,242.14 × 54,131.94
  4. Step 4: Simplify right side
    99,453.90x = 7,429,183,287.95
  5. Step 5: Solve for x
    x = 7,429,183,287.95/99,453.90
  6. Step 6: Final answer
    x = 74,699.77

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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.