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Finding the Fourth Proportional to 143,072.01, 214,628.13 and 43,220.88

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Solution

The fourth proportional to 143,072.01, 214,628.13 and 43,220.88 is: 64,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,072.01 : 214,628.13 = 43,220.88 : x
  2. Step 2: Convert to fraction form
    143,072.01/214,628.13 = 43,220.88/x
  3. Step 3: Cross multiply
    143,072.01x = 214,628.13 × 43,220.88
  4. Step 4: Simplify right side
    143,072.01x = 9,276,416,651.35
  5. Step 5: Solve for x
    x = 9,276,416,651.35/143,072.01
  6. Step 6: Final answer
    x = 64,837.40

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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.