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Finding the Fourth Proportional to 143,125.92, 214,776.24 and 90,462.88

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Solution

The fourth proportional to 143,125.92, 214,776.24 and 90,462.88 is: 135,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,125.92 : 214,776.24 = 90,462.88 : x
  2. Step 2: Convert to fraction form
    143,125.92/214,776.24 = 90,462.88/x
  3. Step 3: Cross multiply
    143,125.92x = 214,776.24 × 90,462.88
  4. Step 4: Simplify right side
    143,125.92x = 19,429,277,225.97
  5. Step 5: Solve for x
    x = 19,429,277,225.97/143,125.92
  6. Step 6: Final answer
    x = 135,749.54

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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.