Home / 147,405.07-203,426.20-82,894.60

Finding the Fourth Proportional to 147,405.07, 203,426.20 and 82,894.60

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Solution

The fourth proportional to 147,405.07, 203,426.20 and 82,894.60 is: 114,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,405.07 : 203,426.20 = 82,894.60 : x
  2. Step 2: Convert to fraction form
    147,405.07/203,426.20 = 82,894.60/x
  3. Step 3: Cross multiply
    147,405.07x = 203,426.20 × 82,894.60
  4. Step 4: Simplify right side
    147,405.07x = 16,862,933,478.52
  5. Step 5: Solve for x
    x = 16,862,933,478.52/147,405.07
  6. Step 6: Final answer
    x = 114,398.60

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Why These Related Problems?

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