Home / 112,601.76-168,902.91-91,441.32

Finding the Fourth Proportional to 112,601.76, 168,902.91 and 91,441.32

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Solution

The fourth proportional to 112,601.76, 168,902.91 and 91,441.32 is: 137,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,601.76 : 168,902.91 = 91,441.32 : x
  2. Step 2: Convert to fraction form
    112,601.76/168,902.91 = 91,441.32/x
  3. Step 3: Cross multiply
    112,601.76x = 168,902.91 × 91,441.32
  4. Step 4: Simplify right side
    112,601.76x = 15,444,705,042.24
  5. Step 5: Solve for x
    x = 15,444,705,042.24/112,601.76
  6. Step 6: Final answer
    x = 137,162.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.