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Finding the Fourth Proportional to 134,038.80, 201,171.60 and 55,209.60

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Solution

The fourth proportional to 134,038.80, 201,171.60 and 55,209.60 is: 82,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,038.80 : 201,171.60 = 55,209.60 : x
  2. Step 2: Convert to fraction form
    134,038.80/201,171.60 = 55,209.60/x
  3. Step 3: Cross multiply
    134,038.80x = 201,171.60 × 55,209.60
  4. Step 4: Simplify right side
    134,038.80x = 11,106,603,567.36
  5. Step 5: Solve for x
    x = 11,106,603,567.36/134,038.80
  6. Step 6: Final answer
    x = 82,861.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.