Home / 165,918.40-248,683.20-124,316.80

Finding the Fourth Proportional to 165,918.40, 248,683.20 and 124,316.80

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Solution

The fourth proportional to 165,918.40, 248,683.20 and 124,316.80 is: 186,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,918.40 : 248,683.20 = 124,316.80 : x
  2. Step 2: Convert to fraction form
    165,918.40/248,683.20 = 124,316.80/x
  3. Step 3: Cross multiply
    165,918.40x = 248,683.20 × 124,316.80
  4. Step 4: Simplify right side
    165,918.40x = 30,915,499,637.76
  5. Step 5: Solve for x
    x = 30,915,499,637.76/165,918.40
  6. Step 6: Final answer
    x = 186,329.54

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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.