Home / 112,864.20-169,296.30-105,865.80

Finding the Fourth Proportional to 112,864.20, 169,296.30 and 105,865.80

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Solution

The fourth proportional to 112,864.20, 169,296.30 and 105,865.80 is: 158,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,864.20 : 169,296.30 = 105,865.80 : x
  2. Step 2: Convert to fraction form
    112,864.20/169,296.30 = 105,865.80/x
  3. Step 3: Cross multiply
    112,864.20x = 169,296.30 × 105,865.80
  4. Step 4: Simplify right side
    112,864.20x = 17,922,688,236.54
  5. Step 5: Solve for x
    x = 17,922,688,236.54/112,864.20
  6. Step 6: Final answer
    x = 158,798.70

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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.