Home / 163,219.35-225,247.17-91,603.81

Finding the Fourth Proportional to 163,219.35, 225,247.17 and 91,603.81

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Solution

The fourth proportional to 163,219.35, 225,247.17 and 91,603.81 is: 126,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,219.35 : 225,247.17 = 91,603.81 : x
  2. Step 2: Convert to fraction form
    163,219.35/225,247.17 = 91,603.81/x
  3. Step 3: Cross multiply
    163,219.35x = 225,247.17 × 91,603.81
  4. Step 4: Simplify right side
    163,219.35x = 20,633,498,963.72
  5. Step 5: Solve for x
    x = 20,633,498,963.72/163,219.35
  6. Step 6: Final answer
    x = 126,415.76

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1.5x scale

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.