Home / 143,742.78-215,646.96-43,917.15

Finding the Fourth Proportional to 143,742.78, 215,646.96 and 43,917.15

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Solution

The fourth proportional to 143,742.78, 215,646.96 and 43,917.15 is: 65,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,742.78 : 215,646.96 = 43,917.15 : x
  2. Step 2: Convert to fraction form
    143,742.78/215,646.96 = 43,917.15/x
  3. Step 3: Cross multiply
    143,742.78x = 215,646.96 × 43,917.15
  4. Step 4: Simplify right side
    143,742.78x = 9,470,599,889.36
  5. Step 5: Solve for x
    x = 9,470,599,889.36/143,742.78
  6. Step 6: Final answer
    x = 65,885.74

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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.