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Finding the Fourth Proportional to 147,149.22, 203,059.80 and 86,722.41

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Solution

The fourth proportional to 147,149.22, 203,059.80 and 86,722.41 is: 119,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,149.22 : 203,059.80 = 86,722.41 : x
  2. Step 2: Convert to fraction form
    147,149.22/203,059.80 = 86,722.41/x
  3. Step 3: Cross multiply
    147,149.22x = 203,059.80 × 86,722.41
  4. Step 4: Simplify right side
    147,149.22x = 17,609,835,230.12
  5. Step 5: Solve for x
    x = 17,609,835,230.12/147,149.22
  6. Step 6: Final answer
    x = 119,673.32

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1.5x scale

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.