Home / 109,374.30-150,939.59-61,629.39

Finding the Fourth Proportional to 109,374.30, 150,939.59 and 61,629.39

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Solution

The fourth proportional to 109,374.30, 150,939.59 and 61,629.39 is: 85,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,374.30 : 150,939.59 = 61,629.39 : x
  2. Step 2: Convert to fraction form
    109,374.30/150,939.59 = 61,629.39/x
  3. Step 3: Cross multiply
    109,374.30x = 150,939.59 × 61,629.39
  4. Step 4: Simplify right side
    109,374.30x = 9,302,314,550.40
  5. Step 5: Solve for x
    x = 9,302,314,550.40/109,374.30
  6. Step 6: Final answer
    x = 85,050.28

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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.