Home / 115,374.32-173,053.27-31,139.28

Finding the Fourth Proportional to 115,374.32, 173,053.27 and 31,139.28

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Solution

The fourth proportional to 115,374.32, 173,053.27 and 31,139.28 is: 46,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.32 : 173,053.27 = 31,139.28 : x
  2. Step 2: Convert to fraction form
    115,374.32/173,053.27 = 31,139.28/x
  3. Step 3: Cross multiply
    115,374.32x = 173,053.27 × 31,139.28
  4. Step 4: Simplify right side
    115,374.32x = 5,388,753,694.08
  5. Step 5: Solve for x
    x = 5,388,753,694.08/115,374.32
  6. Step 6: Final answer
    x = 46,706.70

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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.