Home / 109,622.19-151,291.38-91,192.74

Finding the Fourth Proportional to 109,622.19, 151,291.38 and 91,192.74

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Solution

The fourth proportional to 109,622.19, 151,291.38 and 91,192.74 is: 125,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,622.19 : 151,291.38 = 91,192.74 : x
  2. Step 2: Convert to fraction form
    109,622.19/151,291.38 = 91,192.74/x
  3. Step 3: Cross multiply
    109,622.19x = 151,291.38 × 91,192.74
  4. Step 4: Simplify right side
    109,622.19x = 13,796,675,480.58
  5. Step 5: Solve for x
    x = 13,796,675,480.58/109,622.19
  6. Step 6: Final answer
    x = 125,856.59

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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.