Home / 143,292.40-214,938.60-137,225.20

Finding the Fourth Proportional to 143,292.40, 214,938.60 and 137,225.20

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Solution

The fourth proportional to 143,292.40, 214,938.60 and 137,225.20 is: 205,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,292.40 : 214,938.60 = 137,225.20 : x
  2. Step 2: Convert to fraction form
    143,292.40/214,938.60 = 137,225.20/x
  3. Step 3: Cross multiply
    143,292.40x = 214,938.60 × 137,225.20
  4. Step 4: Simplify right side
    143,292.40x = 29,494,992,372.72
  5. Step 5: Solve for x
    x = 29,494,992,372.72/143,292.40
  6. Step 6: Final answer
    x = 205,837.80

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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.