Home / 109,967.49-151,823.85-75,571.47

Finding the Fourth Proportional to 109,967.49, 151,823.85 and 75,571.47

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Solution

The fourth proportional to 109,967.49, 151,823.85 and 75,571.47 is: 104,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,967.49 : 151,823.85 = 75,571.47 : x
  2. Step 2: Convert to fraction form
    109,967.49/151,823.85 = 75,571.47/x
  3. Step 3: Cross multiply
    109,967.49x = 151,823.85 × 75,571.47
  4. Step 4: Simplify right side
    109,967.49x = 11,473,551,525.56
  5. Step 5: Solve for x
    x = 11,473,551,525.56/109,967.49
  6. Step 6: Final answer
    x = 104,335.85

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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.