Home / 137,763.03-190,105.23-77,328.21

Finding the Fourth Proportional to 137,763.03, 190,105.23 and 77,328.21

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Solution

The fourth proportional to 137,763.03, 190,105.23 and 77,328.21 is: 106,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,763.03 : 190,105.23 = 77,328.21 : x
  2. Step 2: Convert to fraction form
    137,763.03/190,105.23 = 77,328.21/x
  3. Step 3: Cross multiply
    137,763.03x = 190,105.23 × 77,328.21
  4. Step 4: Simplify right side
    137,763.03x = 14,700,497,147.54
  5. Step 5: Solve for x
    x = 14,700,497,147.54/137,763.03
  6. Step 6: Final answer
    x = 106,708.58

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1.5x scale

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.