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Finding the Fourth Proportional to 163,963.77, 245,980.21 and 53,147.13

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Solution

The fourth proportional to 163,963.77, 245,980.21 and 53,147.13 is: 79,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,963.77 : 245,980.21 = 53,147.13 : x
  2. Step 2: Convert to fraction form
    163,963.77/245,980.21 = 53,147.13/x
  3. Step 3: Cross multiply
    163,963.77x = 245,980.21 × 53,147.13
  4. Step 4: Simplify right side
    163,963.77x = 13,073,142,198.30
  5. Step 5: Solve for x
    x = 13,073,142,198.30/163,963.77
  6. Step 6: Final answer
    x = 79,731.90

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1.5x scale

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.