Home / 190,862.78-286,205.29-70,836.13

Finding the Fourth Proportional to 190,862.78, 286,205.29 and 70,836.13

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Solution

The fourth proportional to 190,862.78, 286,205.29 and 70,836.13 is: 106,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,862.78 : 286,205.29 = 70,836.13 : x
  2. Step 2: Convert to fraction form
    190,862.78/286,205.29 = 70,836.13/x
  3. Step 3: Cross multiply
    190,862.78x = 286,205.29 × 70,836.13
  4. Step 4: Simplify right side
    190,862.78x = 20,273,675,129.13
  5. Step 5: Solve for x
    x = 20,273,675,129.13/190,862.78
  6. Step 6: Final answer
    x = 106,221.21

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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.