Home / 112,569.15-168,769.87-68,185.20

Finding the Fourth Proportional to 112,569.15, 168,769.87 and 68,185.20

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Solution

The fourth proportional to 112,569.15, 168,769.87 and 68,185.20 is: 102,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,569.15 : 168,769.87 = 68,185.20 : x
  2. Step 2: Convert to fraction form
    112,569.15/168,769.87 = 68,185.20/x
  3. Step 3: Cross multiply
    112,569.15x = 168,769.87 × 68,185.20
  4. Step 4: Simplify right side
    112,569.15x = 11,507,607,339.92
  5. Step 5: Solve for x
    x = 11,507,607,339.92/112,569.15
  6. Step 6: Final answer
    x = 102,227.01

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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.