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Finding the Fourth Proportional to 142,782.71, 214,174.55 and 36,166.64

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Solution

The fourth proportional to 142,782.71, 214,174.55 and 36,166.64 is: 54,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,782.71 : 214,174.55 = 36,166.64 : x
  2. Step 2: Convert to fraction form
    142,782.71/214,174.55 = 36,166.64/x
  3. Step 3: Cross multiply
    142,782.71x = 214,174.55 × 36,166.64
  4. Step 4: Simplify right side
    142,782.71x = 7,745,972,595.31
  5. Step 5: Solve for x
    x = 7,745,972,595.31/142,782.71
  6. Step 6: Final answer
    x = 54,250.07

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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.