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Finding the Fourth Proportional to 143,027.40, 214,541.10 and 136,466.40

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Solution

The fourth proportional to 143,027.40, 214,541.10 and 136,466.40 is: 204,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,027.40 : 214,541.10 = 136,466.40 : x
  2. Step 2: Convert to fraction form
    143,027.40/214,541.10 = 136,466.40/x
  3. Step 3: Cross multiply
    143,027.40x = 214,541.10 × 136,466.40
  4. Step 4: Simplify right side
    143,027.40x = 29,277,651,569.04
  5. Step 5: Solve for x
    x = 29,277,651,569.04/143,027.40
  6. Step 6: Final answer
    x = 204,699.60

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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.