Home / 190,139.28-262,394.28-105,257.76

Finding the Fourth Proportional to 190,139.28, 262,394.28 and 105,257.76

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Solution

The fourth proportional to 190,139.28, 262,394.28 and 105,257.76 is: 145,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,139.28 : 262,394.28 = 105,257.76 : x
  2. Step 2: Convert to fraction form
    190,139.28/262,394.28 = 105,257.76/x
  3. Step 3: Cross multiply
    190,139.28x = 262,394.28 × 105,257.76
  4. Step 4: Simplify right side
    190,139.28x = 27,619,034,149.61
  5. Step 5: Solve for x
    x = 27,619,034,149.61/190,139.28
  6. Step 6: Final answer
    x = 145,256.86

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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.