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Finding the Fourth Proportional to 98,203.20, 147,232.80 and 39,009.60

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Solution

The fourth proportional to 98,203.20, 147,232.80 and 39,009.60 is: 58,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,203.20 : 147,232.80 = 39,009.60 : x
  2. Step 2: Convert to fraction form
    98,203.20/147,232.80 = 39,009.60/x
  3. Step 3: Cross multiply
    98,203.20x = 147,232.80 × 39,009.60
  4. Step 4: Simplify right side
    98,203.20x = 5,743,492,634.88
  5. Step 5: Solve for x
    x = 5,743,492,634.88/98,203.20
  6. Step 6: Final answer
    x = 58,485.80

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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.