Home / 199,940.32-275,947.92-115,051.68

Finding the Fourth Proportional to 199,940.32, 275,947.92 and 115,051.68

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Solution

The fourth proportional to 199,940.32, 275,947.92 and 115,051.68 is: 158,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,940.32 : 275,947.92 = 115,051.68 : x
  2. Step 2: Convert to fraction form
    199,940.32/275,947.92 = 115,051.68/x
  3. Step 3: Cross multiply
    199,940.32x = 275,947.92 × 115,051.68
  4. Step 4: Simplify right side
    199,940.32x = 31,748,271,788.51
  5. Step 5: Solve for x
    x = 31,748,271,788.51/199,940.32
  6. Step 6: Final answer
    x = 158,788.74

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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.