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Finding the Fourth Proportional to 133,565.34, 200,405.91 and 73,520.45

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Solution

The fourth proportional to 133,565.34, 200,405.91 and 73,520.45 is: 110,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,565.34 : 200,405.91 = 73,520.45 : x
  2. Step 2: Convert to fraction form
    133,565.34/200,405.91 = 73,520.45/x
  3. Step 3: Cross multiply
    133,565.34x = 200,405.91 × 73,520.45
  4. Step 4: Simplify right side
    133,565.34x = 14,733,931,683.83
  5. Step 5: Solve for x
    x = 14,733,931,683.83/133,565.34
  6. Step 6: Final answer
    x = 110,312.54

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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.