Home / 133,740.40-200,688.36-54,911.20

Finding the Fourth Proportional to 133,740.40, 200,688.36 and 54,911.20

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Solution

The fourth proportional to 133,740.40, 200,688.36 and 54,911.20 is: 82,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,740.40 : 200,688.36 = 54,911.20 : x
  2. Step 2: Convert to fraction form
    133,740.40/200,688.36 = 54,911.20/x
  3. Step 3: Cross multiply
    133,740.40x = 200,688.36 × 54,911.20
  4. Step 4: Simplify right side
    133,740.40x = 11,020,038,673.63
  5. Step 5: Solve for x
    x = 11,020,038,673.63/133,740.40
  6. Step 6: Final answer
    x = 82,398.73

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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.