Home / 148,984.31-205,598.35-81,916.31

Finding the Fourth Proportional to 148,984.31, 205,598.35 and 81,916.31

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Solution

The fourth proportional to 148,984.31, 205,598.35 and 81,916.31 is: 113,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,984.31 : 205,598.35 = 81,916.31 : x
  2. Step 2: Convert to fraction form
    148,984.31/205,598.35 = 81,916.31/x
  3. Step 3: Cross multiply
    148,984.31x = 205,598.35 × 81,916.31
  4. Step 4: Simplify right side
    148,984.31x = 16,841,858,790.48
  5. Step 5: Solve for x
    x = 16,841,858,790.48/148,984.31
  6. Step 6: Final answer
    x = 113,044.51

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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.