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Finding the Fourth Proportional to 163,833.80, 245,556.30 and 84,907.40

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Solution

The fourth proportional to 163,833.80, 245,556.30 and 84,907.40 is: 127,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,833.80 : 245,556.30 = 84,907.40 : x
  2. Step 2: Convert to fraction form
    163,833.80/245,556.30 = 84,907.40/x
  3. Step 3: Cross multiply
    163,833.80x = 245,556.30 × 84,907.40
  4. Step 4: Simplify right side
    163,833.80x = 20,849,546,986.62
  5. Step 5: Solve for x
    x = 20,849,546,986.62/163,833.80
  6. Step 6: Final answer
    x = 127,260.35

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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.