Home / 137,534.06-189,859.17-86,621.61

Finding the Fourth Proportional to 137,534.06, 189,859.17 and 86,621.61

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Solution

The fourth proportional to 137,534.06, 189,859.17 and 86,621.61 is: 119,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,534.06 : 189,859.17 = 86,621.61 : x
  2. Step 2: Convert to fraction form
    137,534.06/189,859.17 = 86,621.61/x
  3. Step 3: Cross multiply
    137,534.06x = 189,859.17 × 86,621.61
  4. Step 4: Simplify right side
    137,534.06x = 16,445,906,978.66
  5. Step 5: Solve for x
    x = 16,445,906,978.66/137,534.06
  6. Step 6: Final answer
    x = 119,576.98

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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.