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Finding the Fourth Proportional to 163,537.80, 245,463.30 and 84,708.60

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Solution

The fourth proportional to 163,537.80, 245,463.30 and 84,708.60 is: 127,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,537.80 : 245,463.30 = 84,708.60 : x
  2. Step 2: Convert to fraction form
    163,537.80/245,463.30 = 84,708.60/x
  3. Step 3: Cross multiply
    163,537.80x = 245,463.30 × 84,708.60
  4. Step 4: Simplify right side
    163,537.80x = 20,792,852,494.38
  5. Step 5: Solve for x
    x = 20,792,852,494.38/163,537.80
  6. Step 6: Final answer
    x = 127,144.01

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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.