Home / 161,869.09-223,278.44-104,486.31

Finding the Fourth Proportional to 161,869.09, 223,278.44 and 104,486.31

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Solution

The fourth proportional to 161,869.09, 223,278.44 and 104,486.31 is: 144,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,869.09 : 223,278.44 = 104,486.31 : x
  2. Step 2: Convert to fraction form
    161,869.09/223,278.44 = 104,486.31/x
  3. Step 3: Cross multiply
    161,869.09x = 223,278.44 × 104,486.31
  4. Step 4: Simplify right side
    161,869.09x = 23,329,540,363.46
  5. Step 5: Solve for x
    x = 23,329,540,363.46/161,869.09
  6. Step 6: Final answer
    x = 144,125.98

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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.