Home / 109,549.49-151,185.21-61,785.41

Finding the Fourth Proportional to 109,549.49, 151,185.21 and 61,785.41

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Solution

The fourth proportional to 109,549.49, 151,185.21 and 61,785.41 is: 85,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,549.49 : 151,185.21 = 61,785.41 : x
  2. Step 2: Convert to fraction form
    109,549.49/151,185.21 = 61,785.41/x
  3. Step 3: Cross multiply
    109,549.49x = 151,185.21 × 61,785.41
  4. Step 4: Simplify right side
    109,549.49x = 9,341,040,185.79
  5. Step 5: Solve for x
    x = 9,341,040,185.79/109,549.49
  6. Step 6: Final answer
    x = 85,267.77

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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.