Home / 143,259.89-214,889.60-38,078.86

Finding the Fourth Proportional to 143,259.89, 214,889.60 and 38,078.86

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Solution

The fourth proportional to 143,259.89, 214,889.60 and 38,078.86 is: 57,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,259.89 : 214,889.60 = 38,078.86 : x
  2. Step 2: Convert to fraction form
    143,259.89/214,889.60 = 38,078.86/x
  3. Step 3: Cross multiply
    143,259.89x = 214,889.60 × 38,078.86
  4. Step 4: Simplify right side
    143,259.89x = 8,182,750,993.86
  5. Step 5: Solve for x
    x = 8,182,750,993.86/143,259.89
  6. Step 6: Final answer
    x = 57,118.23

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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.