Home / 139,627.06-192,717.57-83,070.70

Finding the Fourth Proportional to 139,627.06, 192,717.57 and 83,070.70

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Solution

The fourth proportional to 139,627.06, 192,717.57 and 83,070.70 is: 114,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,627.06 : 192,717.57 = 83,070.70 : x
  2. Step 2: Convert to fraction form
    139,627.06/192,717.57 = 83,070.70/x
  3. Step 3: Cross multiply
    139,627.06x = 192,717.57 × 83,070.70
  4. Step 4: Simplify right side
    139,627.06x = 16,009,183,442.20
  5. Step 5: Solve for x
    x = 16,009,183,442.20/139,627.06
  6. Step 6: Final answer
    x = 114,656.74

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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.