Home / 165,627.40-248,441.10-128,302.60

Finding the Fourth Proportional to 165,627.40, 248,441.10 and 128,302.60

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Solution

The fourth proportional to 165,627.40, 248,441.10 and 128,302.60 is: 192,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,627.40 : 248,441.10 = 128,302.60 : x
  2. Step 2: Convert to fraction form
    165,627.40/248,441.10 = 128,302.60/x
  3. Step 3: Cross multiply
    165,627.40x = 248,441.10 × 128,302.60
  4. Step 4: Simplify right side
    165,627.40x = 31,875,639,076.86
  5. Step 5: Solve for x
    x = 31,875,639,076.86/165,627.40
  6. Step 6: Final answer
    x = 192,453.90

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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.