Home / 101,271.06-139,761.09-58,842.90

Finding the Fourth Proportional to 101,271.06, 139,761.09 and 58,842.90

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Solution

The fourth proportional to 101,271.06, 139,761.09 and 58,842.90 is: 81,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,271.06 : 139,761.09 = 58,842.90 : x
  2. Step 2: Convert to fraction form
    101,271.06/139,761.09 = 58,842.90/x
  3. Step 3: Cross multiply
    101,271.06x = 139,761.09 × 58,842.90
  4. Step 4: Simplify right side
    101,271.06x = 8,223,947,842.76
  5. Step 5: Solve for x
    x = 8,223,947,842.76/101,271.06
  6. Step 6: Final answer
    x = 81,207.29

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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.