Home / 187,620.71-258,918.64-101,581.56

Finding the Fourth Proportional to 187,620.71, 258,918.64 and 101,581.56

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Solution

The fourth proportional to 187,620.71, 258,918.64 and 101,581.56 is: 140,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,620.71 : 258,918.64 = 101,581.56 : x
  2. Step 2: Convert to fraction form
    187,620.71/258,918.64 = 101,581.56/x
  3. Step 3: Cross multiply
    187,620.71x = 258,918.64 × 101,581.56
  4. Step 4: Simplify right side
    187,620.71x = 26,301,359,110.32
  5. Step 5: Solve for x
    x = 26,301,359,110.32/187,620.71
  6. Step 6: Final answer
    x = 140,183.67

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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.