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Finding the Fourth Proportional to 101,305.13, 139,801.14 and 58,866.39

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Solution

The fourth proportional to 101,305.13, 139,801.14 and 58,866.39 is: 81,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,305.13 : 139,801.14 = 58,866.39 : x
  2. Step 2: Convert to fraction form
    101,305.13/139,801.14 = 58,866.39/x
  3. Step 3: Cross multiply
    101,305.13x = 139,801.14 × 58,866.39
  4. Step 4: Simplify right side
    101,305.13x = 8,229,588,429.68
  5. Step 5: Solve for x
    x = 8,229,588,429.68/101,305.13
  6. Step 6: Final answer
    x = 81,235.66

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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.