Home / 148,471.03-204,983.45-103,134.43

Finding the Fourth Proportional to 148,471.03, 204,983.45 and 103,134.43

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Solution

The fourth proportional to 148,471.03, 204,983.45 and 103,134.43 is: 142,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,471.03 : 204,983.45 = 103,134.43 : x
  2. Step 2: Convert to fraction form
    148,471.03/204,983.45 = 103,134.43/x
  3. Step 3: Cross multiply
    148,471.03x = 204,983.45 × 103,134.43
  4. Step 4: Simplify right side
    148,471.03x = 21,140,851,275.18
  5. Step 5: Solve for x
    x = 21,140,851,275.18/148,471.03
  6. Step 6: Final answer
    x = 142,390.41

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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.