Home / 190,140.28-262,395.66-105,258.76

Finding the Fourth Proportional to 190,140.28, 262,395.66 and 105,258.76

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Solution

The fourth proportional to 190,140.28, 262,395.66 and 105,258.76 is: 145,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,140.28 : 262,395.66 = 105,258.76 : x
  2. Step 2: Convert to fraction form
    190,140.28/262,395.66 = 105,258.76/x
  3. Step 3: Cross multiply
    190,140.28x = 262,395.66 × 105,258.76
  4. Step 4: Simplify right side
    190,140.28x = 27,619,441,800.98
  5. Step 5: Solve for x
    x = 27,619,441,800.98/190,140.28
  6. Step 6: Final answer
    x = 145,258.24

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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.