Home / 116,816.32-174,886.80-68,639.20

Finding the Fourth Proportional to 116,816.32, 174,886.80 and 68,639.20

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Solution

The fourth proportional to 116,816.32, 174,886.80 and 68,639.20 is: 102,760.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,816.32 : 174,886.80 = 68,639.20 : x
  2. Step 2: Convert to fraction form
    116,816.32/174,886.80 = 68,639.20/x
  3. Step 3: Cross multiply
    116,816.32x = 174,886.80 × 68,639.20
  4. Step 4: Simplify right side
    116,816.32x = 12,004,090,042.56
  5. Step 5: Solve for x
    x = 12,004,090,042.56/116,816.32
  6. Step 6: Final answer
    x = 102,760.39

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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.