Home / 139,216.19-192,085.07-84,767.72

Finding the Fourth Proportional to 139,216.19, 192,085.07 and 84,767.72

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Solution

The fourth proportional to 139,216.19, 192,085.07 and 84,767.72 is: 116,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,216.19 : 192,085.07 = 84,767.72 : x
  2. Step 2: Convert to fraction form
    139,216.19/192,085.07 = 84,767.72/x
  3. Step 3: Cross multiply
    139,216.19x = 192,085.07 × 84,767.72
  4. Step 4: Simplify right side
    139,216.19x = 16,282,612,045.68
  5. Step 5: Solve for x
    x = 16,282,612,045.68/139,216.19
  6. Step 6: Final answer
    x = 116,959.19

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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.