Home / 192,998.30-266,337.60-105,782.90

Finding the Fourth Proportional to 192,998.30, 266,337.60 and 105,782.90

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Solution

The fourth proportional to 192,998.30, 266,337.60 and 105,782.90 is: 145,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,998.30 : 266,337.60 = 105,782.90 : x
  2. Step 2: Convert to fraction form
    192,998.30/266,337.60 = 105,782.90/x
  3. Step 3: Cross multiply
    192,998.30x = 266,337.60 × 105,782.90
  4. Step 4: Simplify right side
    192,998.30x = 28,173,963,707.04
  5. Step 5: Solve for x
    x = 28,173,963,707.04/192,998.30
  6. Step 6: Final answer
    x = 145,980.37

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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.