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Finding the Fourth Proportional to 149,008.80, 223,513.20 and 142,096.80

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Solution

The fourth proportional to 149,008.80, 223,513.20 and 142,096.80 is: 213,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,008.80 : 223,513.20 = 142,096.80 : x
  2. Step 2: Convert to fraction form
    149,008.80/223,513.20 = 142,096.80/x
  3. Step 3: Cross multiply
    149,008.80x = 223,513.20 × 142,096.80
  4. Step 4: Simplify right side
    149,008.80x = 31,760,510,477.76
  5. Step 5: Solve for x
    x = 31,760,510,477.76/149,008.80
  6. Step 6: Final answer
    x = 213,145.20

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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.