Home / 175,618.80-263,428.20-128,962.80

Finding the Fourth Proportional to 175,618.80, 263,428.20 and 128,962.80

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Solution

The fourth proportional to 175,618.80, 263,428.20 and 128,962.80 is: 193,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,618.80 : 263,428.20 = 128,962.80 : x
  2. Step 2: Convert to fraction form
    175,618.80/263,428.20 = 128,962.80/x
  3. Step 3: Cross multiply
    175,618.80x = 263,428.20 × 128,962.80
  4. Step 4: Simplify right side
    175,618.80x = 33,972,438,270.96
  5. Step 5: Solve for x
    x = 33,972,438,270.96/175,618.80
  6. Step 6: Final answer
    x = 193,444.20

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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.