Home / 187,734.74-259,322.38-139,905.05

Finding the Fourth Proportional to 187,734.74, 259,322.38 and 139,905.05

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Solution

The fourth proportional to 187,734.74, 259,322.38 and 139,905.05 is: 193,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,734.74 : 259,322.38 = 139,905.05 : x
  2. Step 2: Convert to fraction form
    187,734.74/259,322.38 = 139,905.05/x
  3. Step 3: Cross multiply
    187,734.74x = 259,322.38 × 139,905.05
  4. Step 4: Simplify right side
    187,734.74x = 36,280,508,893.64
  5. Step 5: Solve for x
    x = 36,280,508,893.64/187,734.74
  6. Step 6: Final answer
    x = 193,254.11

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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.