Home / 163,988.20-245,982.30-104,890.60

Finding the Fourth Proportional to 163,988.20, 245,982.30 and 104,890.60

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Solution

The fourth proportional to 163,988.20, 245,982.30 and 104,890.60 is: 157,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,988.20 : 245,982.30 = 104,890.60 : x
  2. Step 2: Convert to fraction form
    163,988.20/245,982.30 = 104,890.60/x
  3. Step 3: Cross multiply
    163,988.20x = 245,982.30 × 104,890.60
  4. Step 4: Simplify right side
    163,988.20x = 25,801,231,036.38
  5. Step 5: Solve for x
    x = 25,801,231,036.38/163,988.20
  6. Step 6: Final answer
    x = 157,335.90

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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.