Home / 112,947.30-169,336.65-67,958.10

Finding the Fourth Proportional to 112,947.30, 169,336.65 and 67,958.10

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Solution

The fourth proportional to 112,947.30, 169,336.65 and 67,958.10 is: 101,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,947.30 : 169,336.65 = 67,958.10 : x
  2. Step 2: Convert to fraction form
    112,947.30/169,336.65 = 67,958.10/x
  3. Step 3: Cross multiply
    112,947.30x = 169,336.65 × 67,958.10
  4. Step 4: Simplify right side
    112,947.30x = 11,507,796,994.37
  5. Step 5: Solve for x
    x = 11,507,796,994.37/112,947.30
  6. Step 6: Final answer
    x = 101,886.43

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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.