Home / 190,588.16-263,020.16-105,699.52

Finding the Fourth Proportional to 190,588.16, 263,020.16 and 105,699.52

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Solution

The fourth proportional to 190,588.16, 263,020.16 and 105,699.52 is: 145,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,588.16 : 263,020.16 = 105,699.52 : x
  2. Step 2: Convert to fraction form
    190,588.16/263,020.16 = 105,699.52/x
  3. Step 3: Cross multiply
    190,588.16x = 263,020.16 × 105,699.52
  4. Step 4: Simplify right side
    190,588.16x = 27,801,104,662.32
  5. Step 5: Solve for x
    x = 27,801,104,662.32/190,588.16
  6. Step 6: Final answer
    x = 145,870.05

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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.