Home / 133,931.22-200,890.32-49,707.78

Finding the Fourth Proportional to 133,931.22, 200,890.32 and 49,707.78

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Solution

The fourth proportional to 133,931.22, 200,890.32 and 49,707.78 is: 74,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,931.22 : 200,890.32 = 49,707.78 : x
  2. Step 2: Convert to fraction form
    133,931.22/200,890.32 = 49,707.78/x
  3. Step 3: Cross multiply
    133,931.22x = 200,890.32 × 49,707.78
  4. Step 4: Simplify right side
    133,931.22x = 9,985,811,830.69
  5. Step 5: Solve for x
    x = 9,985,811,830.69/133,931.22
  6. Step 6: Final answer
    x = 74,559.25

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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.