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Finding the Fourth Proportional to 133,473.70, 199,918.95 and 103,657.60

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Solution

The fourth proportional to 133,473.70, 199,918.95 and 103,657.60 is: 155,259.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,473.70 : 199,918.95 = 103,657.60 : x
  2. Step 2: Convert to fraction form
    133,473.70/199,918.95 = 103,657.60/x
  3. Step 3: Cross multiply
    133,473.70x = 199,918.95 × 103,657.60
  4. Step 4: Simplify right side
    133,473.70x = 20,723,118,551.52
  5. Step 5: Solve for x
    x = 20,723,118,551.52/133,473.70
  6. Step 6: Final answer
    x = 155,259.94

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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.