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Finding the Fourth Proportional to 133,871.50, 200,807.94 and 45,125.77

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Solution

The fourth proportional to 133,871.50, 200,807.94 and 45,125.77 is: 67,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,871.50 : 200,807.94 = 45,125.77 : x
  2. Step 2: Convert to fraction form
    133,871.50/200,807.94 = 45,125.77/x
  3. Step 3: Cross multiply
    133,871.50x = 200,807.94 × 45,125.77
  4. Step 4: Simplify right side
    133,871.50x = 9,061,612,914.61
  5. Step 5: Solve for x
    x = 9,061,612,914.61/133,871.50
  6. Step 6: Final answer
    x = 67,688.89

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1.5x scale

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.