Home / 161,918.74-223,371.60-105,309.46

Finding the Fourth Proportional to 161,918.74, 223,371.60 and 105,309.46

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Solution

The fourth proportional to 161,918.74, 223,371.60 and 105,309.46 is: 145,277.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,918.74 : 223,371.60 = 105,309.46 : x
  2. Step 2: Convert to fraction form
    161,918.74/223,371.60 = 105,309.46/x
  3. Step 3: Cross multiply
    161,918.74x = 223,371.60 × 105,309.46
  4. Step 4: Simplify right side
    161,918.74x = 23,523,142,575.34
  5. Step 5: Solve for x
    x = 23,523,142,575.34/161,918.74
  6. Step 6: Final answer
    x = 145,277.46

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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.