Home / 165,447.90-248,297.00-121,189.70

Finding the Fourth Proportional to 165,447.90, 248,297.00 and 121,189.70

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Solution

The fourth proportional to 165,447.90, 248,297.00 and 121,189.70 is: 181,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,447.90 : 248,297.00 = 121,189.70 : x
  2. Step 2: Convert to fraction form
    165,447.90/248,297.00 = 121,189.70/x
  3. Step 3: Cross multiply
    165,447.90x = 248,297.00 × 121,189.70
  4. Step 4: Simplify right side
    165,447.90x = 30,091,038,955.69
  5. Step 5: Solve for x
    x = 30,091,038,955.69/165,447.90
  6. Step 6: Final answer
    x = 181,876.22

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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.