Home / 149,453.57-206,303.49-109,484.78

Finding the Fourth Proportional to 149,453.57, 206,303.49 and 109,484.78

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Solution

The fourth proportional to 149,453.57, 206,303.49 and 109,484.78 is: 151,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,453.57 : 206,303.49 = 109,484.78 : x
  2. Step 2: Convert to fraction form
    149,453.57/206,303.49 = 109,484.78/x
  3. Step 3: Cross multiply
    149,453.57x = 206,303.49 × 109,484.78
  4. Step 4: Simplify right side
    149,453.57x = 22,587,091,184.36
  5. Step 5: Solve for x
    x = 22,587,091,184.36/149,453.57
  6. Step 6: Final answer
    x = 151,131.16

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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.