Home / 101,206.13-139,676.77-58,764.66

Finding the Fourth Proportional to 101,206.13, 139,676.77 and 58,764.66

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Solution

The fourth proportional to 101,206.13, 139,676.77 and 58,764.66 is: 81,102.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,206.13 : 139,676.77 = 58,764.66 : x
  2. Step 2: Convert to fraction form
    101,206.13/139,676.77 = 58,764.66/x
  3. Step 3: Cross multiply
    101,206.13x = 139,676.77 × 58,764.66
  4. Step 4: Simplify right side
    101,206.13x = 8,208,057,448.62
  5. Step 5: Solve for x
    x = 8,208,057,448.62/101,206.13
  6. Step 6: Final answer
    x = 81,102.38

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1.5x scale

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.