Home / 112,410.54-168,313.66-85,628.95

Finding the Fourth Proportional to 112,410.54, 168,313.66 and 85,628.95

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Solution

The fourth proportional to 112,410.54, 168,313.66 and 85,628.95 is: 128,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,410.54 : 168,313.66 = 85,628.95 : x
  2. Step 2: Convert to fraction form
    112,410.54/168,313.66 = 85,628.95/x
  3. Step 3: Cross multiply
    112,410.54x = 168,313.66 × 85,628.95
  4. Step 4: Simplify right side
    112,410.54x = 14,412,521,976.46
  5. Step 5: Solve for x
    x = 14,412,521,976.46/112,410.54
  6. Step 6: Final answer
    x = 128,213.26

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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.