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Finding the Fourth Proportional to 147,485.13, 203,529.68 and 80,417.13

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Solution

The fourth proportional to 147,485.13, 203,529.68 and 80,417.13 is: 110,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,485.13 : 203,529.68 = 80,417.13 : x
  2. Step 2: Convert to fraction form
    147,485.13/203,529.68 = 80,417.13/x
  3. Step 3: Cross multiply
    147,485.13x = 203,529.68 × 80,417.13
  4. Step 4: Simplify right side
    147,485.13x = 16,367,272,735.42
  5. Step 5: Solve for x
    x = 16,367,272,735.42/147,485.13
  6. Step 6: Final answer
    x = 110,975.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.