Home / 142,707.09-214,103.85-53,987.79

Finding the Fourth Proportional to 142,707.09, 214,103.85 and 53,987.79

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Solution

The fourth proportional to 142,707.09, 214,103.85 and 53,987.79 is: 80,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,707.09 : 214,103.85 = 53,987.79 : x
  2. Step 2: Convert to fraction form
    142,707.09/214,103.85 = 53,987.79/x
  3. Step 3: Cross multiply
    142,707.09x = 214,103.85 × 53,987.79
  4. Step 4: Simplify right side
    142,707.09x = 11,558,993,691.99
  5. Step 5: Solve for x
    x = 11,558,993,691.99/142,707.09
  6. Step 6: Final answer
    x = 80,998.03

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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.