Home / 190,910.70-286,369.69-57,790.44

Finding the Fourth Proportional to 190,910.70, 286,369.69 and 57,790.44

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Solution

The fourth proportional to 190,910.70, 286,369.69 and 57,790.44 is: 86,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,910.70 : 286,369.69 = 57,790.44 : x
  2. Step 2: Convert to fraction form
    190,910.70/286,369.69 = 57,790.44/x
  3. Step 3: Cross multiply
    190,910.70x = 286,369.69 × 57,790.44
  4. Step 4: Simplify right side
    190,910.70x = 16,549,430,387.76
  5. Step 5: Solve for x
    x = 16,549,430,387.76/190,910.70
  6. Step 6: Final answer
    x = 86,686.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.