Home / 105,807.31-158,720.19-34,708.63

Finding the Fourth Proportional to 105,807.31, 158,720.19 and 34,708.63

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Solution

The fourth proportional to 105,807.31, 158,720.19 and 34,708.63 is: 52,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,807.31 : 158,720.19 = 34,708.63 : x
  2. Step 2: Convert to fraction form
    105,807.31/158,720.19 = 34,708.63/x
  3. Step 3: Cross multiply
    105,807.31x = 158,720.19 × 34,708.63
  4. Step 4: Simplify right side
    105,807.31x = 5,508,960,348.24
  5. Step 5: Solve for x
    x = 5,508,960,348.24/105,807.31
  6. Step 6: Final answer
    x = 52,065.97

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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.