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Finding the Fourth Proportional to 163,844.80, 245,767.20 and 130,019.20

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Solution

The fourth proportional to 163,844.80, 245,767.20 and 130,019.20 is: 195,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,844.80 : 245,767.20 = 130,019.20 : x
  2. Step 2: Convert to fraction form
    163,844.80/245,767.20 = 130,019.20/x
  3. Step 3: Cross multiply
    163,844.80x = 245,767.20 × 130,019.20
  4. Step 4: Simplify right side
    163,844.80x = 31,954,454,730.24
  5. Step 5: Solve for x
    x = 31,954,454,730.24/163,844.80
  6. Step 6: Final answer
    x = 195,028.80

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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.