Home / 113,055.76-155,972.54-67,735.64

Finding the Fourth Proportional to 113,055.76, 155,972.54 and 67,735.64

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Solution

The fourth proportional to 113,055.76, 155,972.54 and 67,735.64 is: 93,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,055.76 : 155,972.54 = 67,735.64 : x
  2. Step 2: Convert to fraction form
    113,055.76/155,972.54 = 67,735.64/x
  3. Step 3: Cross multiply
    113,055.76x = 155,972.54 × 67,735.64
  4. Step 4: Simplify right side
    113,055.76x = 10,564,899,480.65
  5. Step 5: Solve for x
    x = 10,564,899,480.65/113,055.76
  6. Step 6: Final answer
    x = 93,448.58

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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.