Home / 106,626.41-159,878.54-85,605.23

Finding the Fourth Proportional to 106,626.41, 159,878.54 and 85,605.23

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Solution

The fourth proportional to 106,626.41, 159,878.54 and 85,605.23 is: 128,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,626.41 : 159,878.54 = 85,605.23 : x
  2. Step 2: Convert to fraction form
    106,626.41/159,878.54 = 85,605.23/x
  3. Step 3: Cross multiply
    106,626.41x = 159,878.54 × 85,605.23
  4. Step 4: Simplify right side
    106,626.41x = 13,686,437,961.35
  5. Step 5: Solve for x
    x = 13,686,437,961.35/106,626.41
  6. Step 6: Final answer
    x = 128,358.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.