Home / 147,584.80-221,636.40-142,919.20

Finding the Fourth Proportional to 147,584.80, 221,636.40 and 142,919.20

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Solution

The fourth proportional to 147,584.80, 221,636.40 and 142,919.20 is: 214,629.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,584.80 : 221,636.40 = 142,919.20 : x
  2. Step 2: Convert to fraction form
    147,584.80/221,636.40 = 142,919.20/x
  3. Step 3: Cross multiply
    147,584.80x = 221,636.40 × 142,919.20
  4. Step 4: Simplify right side
    147,584.80x = 31,676,096,978.88
  5. Step 5: Solve for x
    x = 31,676,096,978.88/147,584.80
  6. Step 6: Final answer
    x = 214,629.81

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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.