Home / 190,667.59-263,117.77-105,782.83

Finding the Fourth Proportional to 190,667.59, 263,117.77 and 105,782.83

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Solution

The fourth proportional to 190,667.59, 263,117.77 and 105,782.83 is: 145,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,667.59 : 263,117.77 = 105,782.83 : x
  2. Step 2: Convert to fraction form
    190,667.59/263,117.77 = 105,782.83/x
  3. Step 3: Cross multiply
    190,667.59x = 263,117.77 × 105,782.83
  4. Step 4: Simplify right side
    190,667.59x = 27,833,342,333.89
  5. Step 5: Solve for x
    x = 27,833,342,333.89/190,667.59
  6. Step 6: Final answer
    x = 145,978.36

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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.