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Finding the Fourth Proportional to 133,483.64, 200,225.40 and 39,989.39

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Solution

The fourth proportional to 133,483.64, 200,225.40 and 39,989.39 is: 59,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,483.64 : 200,225.40 = 39,989.39 : x
  2. Step 2: Convert to fraction form
    133,483.64/200,225.40 = 39,989.39/x
  3. Step 3: Cross multiply
    133,483.64x = 200,225.40 × 39,989.39
  4. Step 4: Simplify right side
    133,483.64x = 8,006,890,607.38
  5. Step 5: Solve for x
    x = 8,006,890,607.38/133,483.64
  6. Step 6: Final answer
    x = 59,984.06

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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.