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Finding the Fourth Proportional to 142,713.60, 214,005.60 and 53,937.60

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Solution

The fourth proportional to 142,713.60, 214,005.60 and 53,937.60 is: 80,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.60 : 214,005.60 = 53,937.60 : x
  2. Step 2: Convert to fraction form
    142,713.60/214,005.60 = 53,937.60/x
  3. Step 3: Cross multiply
    142,713.60x = 214,005.60 × 53,937.60
  4. Step 4: Simplify right side
    142,713.60x = 11,542,948,450.56
  5. Step 5: Solve for x
    x = 11,542,948,450.56/142,713.60
  6. Step 6: Final answer
    x = 80,881.91

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1.5x scale

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.