Home / 139,549.74-192,583.71-79,945.26

Finding the Fourth Proportional to 139,549.74, 192,583.71 and 79,945.26

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Solution

The fourth proportional to 139,549.74, 192,583.71 and 79,945.26 is: 110,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,549.74 : 192,583.71 = 79,945.26 : x
  2. Step 2: Convert to fraction form
    139,549.74/192,583.71 = 79,945.26/x
  3. Step 3: Cross multiply
    139,549.74x = 192,583.71 × 79,945.26
  4. Step 4: Simplify right side
    139,549.74x = 15,396,154,767.71
  5. Step 5: Solve for x
    x = 15,396,154,767.71/139,549.74
  6. Step 6: Final answer
    x = 110,327.36

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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.