Home / 190,126.11-262,374.03-105,243.17

Finding the Fourth Proportional to 190,126.11, 262,374.03 and 105,243.17

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Solution

The fourth proportional to 190,126.11, 262,374.03 and 105,243.17 is: 145,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,126.11 : 262,374.03 = 105,243.17 : x
  2. Step 2: Convert to fraction form
    190,126.11/262,374.03 = 105,243.17/x
  3. Step 3: Cross multiply
    190,126.11x = 262,374.03 × 105,243.17
  4. Step 4: Simplify right side
    190,126.11x = 27,613,074,642.88
  5. Step 5: Solve for x
    x = 27,613,074,642.88/190,126.11
  6. Step 6: Final answer
    x = 145,235.57

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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.