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Finding the Fourth Proportional to 143,237.70, 214,856.55 and 49,743.45

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Solution

The fourth proportional to 143,237.70, 214,856.55 and 49,743.45 is: 74,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,237.70 : 214,856.55 = 49,743.45 : x
  2. Step 2: Convert to fraction form
    143,237.70/214,856.55 = 49,743.45/x
  3. Step 3: Cross multiply
    143,237.70x = 214,856.55 × 49,743.45
  4. Step 4: Simplify right side
    143,237.70x = 10,687,706,052.10
  5. Step 5: Solve for x
    x = 10,687,706,052.10/143,237.70
  6. Step 6: Final answer
    x = 74,615.18

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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.