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Finding the Fourth Proportional to 101,126.96, 139,548.93 and 55,805.30

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Solution

The fourth proportional to 101,126.96, 139,548.93 and 55,805.30 is: 77,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,126.96 : 139,548.93 = 55,805.30 : x
  2. Step 2: Convert to fraction form
    101,126.96/139,548.93 = 55,805.30/x
  3. Step 3: Cross multiply
    101,126.96x = 139,548.93 × 55,805.30
  4. Step 4: Simplify right side
    101,126.96x = 7,787,569,903.33
  5. Step 5: Solve for x
    x = 7,787,569,903.33/101,126.96
  6. Step 6: Final answer
    x = 77,007.85

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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.