Home / 148,981.26-205,594.12-81,913.26

Finding the Fourth Proportional to 148,981.26, 205,594.12 and 81,913.26

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Solution

The fourth proportional to 148,981.26, 205,594.12 and 81,913.26 is: 113,040.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,981.26 : 205,594.12 = 81,913.26 : x
  2. Step 2: Convert to fraction form
    148,981.26/205,594.12 = 81,913.26/x
  3. Step 3: Cross multiply
    148,981.26x = 205,594.12 × 81,913.26
  4. Step 4: Simplify right side
    148,981.26x = 16,840,884,606.03
  5. Step 5: Solve for x
    x = 16,840,884,606.03/148,981.26
  6. Step 6: Final answer
    x = 113,040.29

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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.