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Finding the Fourth Proportional to 163,604, 245,463.60 and 80,556.32

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Solution

The fourth proportional to 163,604, 245,463.60 and 80,556.32 is: 120,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,604 : 245,463.60 = 80,556.32 : x
  2. Step 2: Convert to fraction form
    163,604/245,463.60 = 80,556.32/x
  3. Step 3: Cross multiply
    163,604x = 245,463.60 × 80,556.32
  4. Step 4: Simplify right side
    163,604x = 19,773,644,309.95
  5. Step 5: Solve for x
    x = 19,773,644,309.95/163,604
  6. Step 6: Final answer
    x = 120,862.84

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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.