Home / 107,749.39-148,549.24-75,440.57

Finding the Fourth Proportional to 107,749.39, 148,549.24 and 75,440.57

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Solution

The fourth proportional to 107,749.39, 148,549.24 and 75,440.57 is: 104,006.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,749.39 : 148,549.24 = 75,440.57 : x
  2. Step 2: Convert to fraction form
    107,749.39/148,549.24 = 75,440.57/x
  3. Step 3: Cross multiply
    107,749.39x = 148,549.24 × 75,440.57
  4. Step 4: Simplify right side
    107,749.39x = 11,206,638,690.22
  5. Step 5: Solve for x
    x = 11,206,638,690.22/107,749.39
  6. Step 6: Final answer
    x = 104,006.52

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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.