Home / 190,713.54-263,184.30-105,830.40

Finding the Fourth Proportional to 190,713.54, 263,184.30 and 105,830.40

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Solution

The fourth proportional to 190,713.54, 263,184.30 and 105,830.40 is: 146,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,713.54 : 263,184.30 = 105,830.40 : x
  2. Step 2: Convert to fraction form
    190,713.54/263,184.30 = 105,830.40/x
  3. Step 3: Cross multiply
    190,713.54x = 263,184.30 × 105,830.40
  4. Step 4: Simplify right side
    190,713.54x = 27,852,899,742.72
  5. Step 5: Solve for x
    x = 27,852,899,742.72/190,713.54
  6. Step 6: Final answer
    x = 146,045.74

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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.