Home / 190,183.85-262,461.91-105,300.91

Finding the Fourth Proportional to 190,183.85, 262,461.91 and 105,300.91

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Solution

The fourth proportional to 190,183.85, 262,461.91 and 105,300.91 is: 145,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,183.85 : 262,461.91 = 105,300.91 : x
  2. Step 2: Convert to fraction form
    190,183.85/262,461.91 = 105,300.91/x
  3. Step 3: Cross multiply
    190,183.85x = 262,461.91 × 105,300.91
  4. Step 4: Simplify right side
    190,183.85x = 27,637,477,700.09
  5. Step 5: Solve for x
    x = 27,637,477,700.09/190,183.85
  6. Step 6: Final answer
    x = 145,319.79

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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.