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Finding the Fourth Proportional to 133,368.30, 199,615.05 and 103,625.10

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Solution

The fourth proportional to 133,368.30, 199,615.05 and 103,625.10 is: 155,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,368.30 : 199,615.05 = 103,625.10 : x
  2. Step 2: Convert to fraction form
    133,368.30/199,615.05 = 103,625.10/x
  3. Step 3: Cross multiply
    133,368.30x = 199,615.05 × 103,625.10
  4. Step 4: Simplify right side
    133,368.30x = 20,685,129,517.76
  5. Step 5: Solve for x
    x = 20,685,129,517.76/133,368.30
  6. Step 6: Final answer
    x = 155,097.80

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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.