Home / 199,989.34-276,013.47-122,511.22

Finding the Fourth Proportional to 199,989.34, 276,013.47 and 122,511.22

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Solution

The fourth proportional to 199,989.34, 276,013.47 and 122,511.22 is: 169,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,989.34 : 276,013.47 = 122,511.22 : x
  2. Step 2: Convert to fraction form
    199,989.34/276,013.47 = 122,511.22/x
  3. Step 3: Cross multiply
    199,989.34x = 276,013.47 × 122,511.22
  4. Step 4: Simplify right side
    199,989.34x = 33,814,746,715.52
  5. Step 5: Solve for x
    x = 33,814,746,715.52/199,989.34
  6. Step 6: Final answer
    x = 169,082.75

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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.