Home / 119,929.69-165,505.55-66,218.11

Finding the Fourth Proportional to 119,929.69, 165,505.55 and 66,218.11

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Solution

The fourth proportional to 119,929.69, 165,505.55 and 66,218.11 is: 91,382.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,929.69 : 165,505.55 = 66,218.11 : x
  2. Step 2: Convert to fraction form
    119,929.69/165,505.55 = 66,218.11/x
  3. Step 3: Cross multiply
    119,929.69x = 165,505.55 × 66,218.11
  4. Step 4: Simplify right side
    119,929.69x = 10,959,464,529.37
  5. Step 5: Solve for x
    x = 10,959,464,529.37/119,929.69
  6. Step 6: Final answer
    x = 91,382.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.