Home / 223,547.68-335,343.39-81,431.56

Finding the Fourth Proportional to 223,547.68, 335,343.39 and 81,431.56

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Solution

The fourth proportional to 223,547.68, 335,343.39 and 81,431.56 is: 122,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,547.68 : 335,343.39 = 81,431.56 : x
  2. Step 2: Convert to fraction form
    223,547.68/335,343.39 = 81,431.56/x
  3. Step 3: Cross multiply
    223,547.68x = 335,343.39 × 81,431.56
  4. Step 4: Simplify right side
    223,547.68x = 27,307,535,383.39
  5. Step 5: Solve for x
    x = 27,307,535,383.39/223,547.68
  6. Step 6: Final answer
    x = 122,155.31

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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.