Home / 190,299.38-262,613.14-105,421.91

Finding the Fourth Proportional to 190,299.38, 262,613.14 and 105,421.91

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Solution

The fourth proportional to 190,299.38, 262,613.14 and 105,421.91 is: 145,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,299.38 : 262,613.14 = 105,421.91 : x
  2. Step 2: Convert to fraction form
    190,299.38/262,613.14 = 105,421.91/x
  3. Step 3: Cross multiply
    190,299.38x = 262,613.14 × 105,421.91
  4. Step 4: Simplify right side
    190,299.38x = 27,685,177,233.28
  5. Step 5: Solve for x
    x = 27,685,177,233.28/190,299.38
  6. Step 6: Final answer
    x = 145,482.23

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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.