Home / 175,244.80-262,406.40-128,243.20

Finding the Fourth Proportional to 175,244.80, 262,406.40 and 128,243.20

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Solution

The fourth proportional to 175,244.80, 262,406.40 and 128,243.20 is: 192,027.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,244.80 : 262,406.40 = 128,243.20 : x
  2. Step 2: Convert to fraction form
    175,244.80/262,406.40 = 128,243.20/x
  3. Step 3: Cross multiply
    175,244.80x = 262,406.40 × 128,243.20
  4. Step 4: Simplify right side
    175,244.80x = 33,651,836,436.48
  5. Step 5: Solve for x
    x = 33,651,836,436.48/175,244.80
  6. Step 6: Final answer
    x = 192,027.59

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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.