Home / 112,975.54-155,905.74-62,674.54

Finding the Fourth Proportional to 112,975.54, 155,905.74 and 62,674.54

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Solution

The fourth proportional to 112,975.54, 155,905.74 and 62,674.54 is: 86,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,975.54 : 155,905.74 = 62,674.54 : x
  2. Step 2: Convert to fraction form
    112,975.54/155,905.74 = 62,674.54/x
  3. Step 3: Cross multiply
    112,975.54x = 155,905.74 × 62,674.54
  4. Step 4: Simplify right side
    112,975.54x = 9,771,320,537.86
  5. Step 5: Solve for x
    x = 9,771,320,537.86/112,975.54
  6. Step 6: Final answer
    x = 86,490.58

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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.