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Finding the Fourth Proportional to 101,188.04, 139,638.84 and 55,868.84

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Solution

The fourth proportional to 101,188.04, 139,638.84 and 55,868.84 is: 77,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188.04 : 139,638.84 = 55,868.84 : x
  2. Step 2: Convert to fraction form
    101,188.04/139,638.84 = 55,868.84/x
  3. Step 3: Cross multiply
    101,188.04x = 139,638.84 × 55,868.84
  4. Step 4: Simplify right side
    101,188.04x = 7,801,459,625.69
  5. Step 5: Solve for x
    x = 7,801,459,625.69/101,188.04
  6. Step 6: Final answer
    x = 77,098.64

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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.