Home / 100,960.01-139,227.65-66,443.00

Finding the Fourth Proportional to 100,960.01, 139,227.65 and 66,443.00

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Solution

The fourth proportional to 100,960.01, 139,227.65 and 66,443.00 is: 91,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,960.01 : 139,227.65 = 66,443.00 : x
  2. Step 2: Convert to fraction form
    100,960.01/139,227.65 = 66,443.00/x
  3. Step 3: Cross multiply
    100,960.01x = 139,227.65 × 66,443.00
  4. Step 4: Simplify right side
    100,960.01x = 9,250,702,072.11
  5. Step 5: Solve for x
    x = 9,250,702,072.11/100,960.01
  6. Step 6: Final answer
    x = 91,627.39

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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.