Home / 143,811.51-215,717.27-43,971.71

Finding the Fourth Proportional to 143,811.51, 215,717.27 and 43,971.71

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Solution

The fourth proportional to 143,811.51, 215,717.27 and 43,971.71 is: 65,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,811.51 : 215,717.27 = 43,971.71 : x
  2. Step 2: Convert to fraction form
    143,811.51/215,717.27 = 43,971.71/x
  3. Step 3: Cross multiply
    143,811.51x = 215,717.27 × 43,971.71
  4. Step 4: Simplify right side
    143,811.51x = 9,485,455,939.99
  5. Step 5: Solve for x
    x = 9,485,455,939.99/143,811.51
  6. Step 6: Final answer
    x = 65,957.56

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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.