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Finding the Fourth Proportional to 101,007.36, 139,391.14 and 55,687.14

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Solution

The fourth proportional to 101,007.36, 139,391.14 and 55,687.14 is: 76,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,007.36 : 139,391.14 = 55,687.14 : x
  2. Step 2: Convert to fraction form
    101,007.36/139,391.14 = 55,687.14/x
  3. Step 3: Cross multiply
    101,007.36x = 139,391.14 × 55,687.14
  4. Step 4: Simplify right side
    101,007.36x = 7,762,293,927.94
  5. Step 5: Solve for x
    x = 7,762,293,927.94/101,007.36
  6. Step 6: Final answer
    x = 76,848.80

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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.