Home / 207,389.69-286,286.24-139,446.05

Finding the Fourth Proportional to 207,389.69, 286,286.24 and 139,446.05

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Solution

The fourth proportional to 207,389.69, 286,286.24 and 139,446.05 is: 192,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,389.69 : 286,286.24 = 139,446.05 : x
  2. Step 2: Convert to fraction form
    207,389.69/286,286.24 = 139,446.05/x
  3. Step 3: Cross multiply
    207,389.69x = 286,286.24 × 139,446.05
  4. Step 4: Simplify right side
    207,389.69x = 39,921,485,337.35
  5. Step 5: Solve for x
    x = 39,921,485,337.35/207,389.69
  6. Step 6: Final answer
    x = 192,495.03

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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.