Home / 190,759.38-286,141.05-57,640.74

Finding the Fourth Proportional to 190,759.38, 286,141.05 and 57,640.74

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Solution

The fourth proportional to 190,759.38, 286,141.05 and 57,640.74 is: 86,461.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,759.38 : 286,141.05 = 57,640.74 : x
  2. Step 2: Convert to fraction form
    190,759.38/286,141.05 = 57,640.74/x
  3. Step 3: Cross multiply
    190,759.38x = 286,141.05 × 57,640.74
  4. Step 4: Simplify right side
    190,759.38x = 16,493,381,866.38
  5. Step 5: Solve for x
    x = 16,493,381,866.38/190,759.38
  6. Step 6: Final answer
    x = 86,461.71

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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.