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Finding the Fourth Proportional to 133,403.06, 200,030.72 and 54,572.66

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Solution

The fourth proportional to 133,403.06, 200,030.72 and 54,572.66 is: 81,828.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,403.06 : 200,030.72 = 54,572.66 : x
  2. Step 2: Convert to fraction form
    133,403.06/200,030.72 = 54,572.66/x
  3. Step 3: Cross multiply
    133,403.06x = 200,030.72 × 54,572.66
  4. Step 4: Simplify right side
    133,403.06x = 10,916,208,472.12
  5. Step 5: Solve for x
    x = 10,916,208,472.12/133,403.06
  6. Step 6: Final answer
    x = 81,828.77

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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.