Home / 112,803.08-155,696.82-67,508.36

Finding the Fourth Proportional to 112,803.08, 155,696.82 and 67,508.36

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Solution

The fourth proportional to 112,803.08, 155,696.82 and 67,508.36 is: 93,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,803.08 : 155,696.82 = 67,508.36 : x
  2. Step 2: Convert to fraction form
    112,803.08/155,696.82 = 67,508.36/x
  3. Step 3: Cross multiply
    112,803.08x = 155,696.82 × 67,508.36
  4. Step 4: Simplify right side
    112,803.08x = 10,510,836,975.42
  5. Step 5: Solve for x
    x = 10,510,836,975.42/112,803.08
  6. Step 6: Final answer
    x = 93,178.63

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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.