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Finding the Fourth Proportional to 101,027.98, 139,412.17 and 55,706.25

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Solution

The fourth proportional to 101,027.98, 139,412.17 and 55,706.25 is: 76,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,027.98 : 139,412.17 = 55,706.25 : x
  2. Step 2: Convert to fraction form
    101,027.98/139,412.17 = 55,706.25/x
  3. Step 3: Cross multiply
    101,027.98x = 139,412.17 × 55,706.25
  4. Step 4: Simplify right side
    101,027.98x = 7,766,129,195.06
  5. Step 5: Solve for x
    x = 7,766,129,195.06/101,027.98
  6. Step 6: Final answer
    x = 76,871.07

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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.