Home / 190,291.56-262,601.64-105,406.80

Finding the Fourth Proportional to 190,291.56, 262,601.64 and 105,406.80

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Solution

The fourth proportional to 190,291.56, 262,601.64 and 105,406.80 is: 145,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,291.56 : 262,601.64 = 105,406.80 : x
  2. Step 2: Convert to fraction form
    190,291.56/262,601.64 = 105,406.80/x
  3. Step 3: Cross multiply
    190,291.56x = 262,601.64 × 105,406.80
  4. Step 4: Simplify right side
    190,291.56x = 27,679,998,547.15
  5. Step 5: Solve for x
    x = 27,679,998,547.15/190,291.56
  6. Step 6: Final answer
    x = 145,460.99

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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.