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Finding the Fourth Proportional to 147,604.40, 221,406.60 and 72,736.10

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Solution

The fourth proportional to 147,604.40, 221,406.60 and 72,736.10 is: 109,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,604.40 : 221,406.60 = 72,736.10 : x
  2. Step 2: Convert to fraction form
    147,604.40/221,406.60 = 72,736.10/x
  3. Step 3: Cross multiply
    147,604.40x = 221,406.60 × 72,736.10
  4. Step 4: Simplify right side
    147,604.40x = 16,104,252,598.26
  5. Step 5: Solve for x
    x = 16,104,252,598.26/147,604.40
  6. Step 6: Final answer
    x = 109,104.15

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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.