Home / 190,580.31-263,002.14-105,702.84

Finding the Fourth Proportional to 190,580.31, 263,002.14 and 105,702.84

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Solution

The fourth proportional to 190,580.31, 263,002.14 and 105,702.84 is: 145,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,580.31 : 263,002.14 = 105,702.84 : x
  2. Step 2: Convert to fraction form
    190,580.31/263,002.14 = 105,702.84/x
  3. Step 3: Cross multiply
    190,580.31x = 263,002.14 × 105,702.84
  4. Step 4: Simplify right side
    190,580.31x = 27,800,073,124.08
  5. Step 5: Solve for x
    x = 27,800,073,124.08/190,580.31
  6. Step 6: Final answer
    x = 145,870.65

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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.