Home / 147,121.47-203,021.48-83,471.27

Finding the Fourth Proportional to 147,121.47, 203,021.48 and 83,471.27

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Solution

The fourth proportional to 147,121.47, 203,021.48 and 83,471.27 is: 115,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,121.47 : 203,021.48 = 83,471.27 : x
  2. Step 2: Convert to fraction form
    147,121.47/203,021.48 = 83,471.27/x
  3. Step 3: Cross multiply
    147,121.47x = 203,021.48 × 83,471.27
  4. Step 4: Simplify right side
    147,121.47x = 16,946,459,340.42
  5. Step 5: Solve for x
    x = 16,946,459,340.42/147,121.47
  6. Step 6: Final answer
    x = 115,186.85

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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.