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Finding the Fourth Proportional to 147,812.80, 221,719.20 and 100,573.60

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Solution

The fourth proportional to 147,812.80, 221,719.20 and 100,573.60 is: 150,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,812.80 : 221,719.20 = 100,573.60 : x
  2. Step 2: Convert to fraction form
    147,812.80/221,719.20 = 100,573.60/x
  3. Step 3: Cross multiply
    147,812.80x = 221,719.20 × 100,573.60
  4. Step 4: Simplify right side
    147,812.80x = 22,299,098,133.12
  5. Step 5: Solve for x
    x = 22,299,098,133.12/147,812.80
  6. Step 6: Final answer
    x = 150,860.40

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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.