Home / 112,285.92-154,954.20-61,984.56

Finding the Fourth Proportional to 112,285.92, 154,954.20 and 61,984.56

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Solution

The fourth proportional to 112,285.92, 154,954.20 and 61,984.56 is: 85,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,285.92 : 154,954.20 = 61,984.56 : x
  2. Step 2: Convert to fraction form
    112,285.92/154,954.20 = 61,984.56/x
  3. Step 3: Cross multiply
    112,285.92x = 154,954.20 × 61,984.56
  4. Step 4: Simplify right side
    112,285.92x = 9,604,767,907.15
  5. Step 5: Solve for x
    x = 9,604,767,907.15/112,285.92
  6. Step 6: Final answer
    x = 85,538.49

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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.