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Finding the Fourth Proportional to 143,607.30, 214,900.65 and 125,090.70

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Solution

The fourth proportional to 143,607.30, 214,900.65 and 125,090.70 is: 187,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.30 : 214,900.65 = 125,090.70 : x
  2. Step 2: Convert to fraction form
    143,607.30/214,900.65 = 125,090.70/x
  3. Step 3: Cross multiply
    143,607.30x = 214,900.65 × 125,090.70
  4. Step 4: Simplify right side
    143,607.30x = 26,882,072,738.96
  5. Step 5: Solve for x
    x = 26,882,072,738.96/143,607.30
  6. Step 6: Final answer
    x = 187,191.55

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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.