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Finding the Fourth Proportional to 133,027.80, 199,541.70 and 130,403.40

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Solution

The fourth proportional to 133,027.80, 199,541.70 and 130,403.40 is: 195,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,027.80 : 199,541.70 = 130,403.40 : x
  2. Step 2: Convert to fraction form
    133,027.80/199,541.70 = 130,403.40/x
  3. Step 3: Cross multiply
    133,027.80x = 199,541.70 × 130,403.40
  4. Step 4: Simplify right side
    133,027.80x = 26,020,916,121.78
  5. Step 5: Solve for x
    x = 26,020,916,121.78/133,027.80
  6. Step 6: Final answer
    x = 195,605.10

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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.