Home / 190,934.72-286,652.37-128,036.30

Finding the Fourth Proportional to 190,934.72, 286,652.37 and 128,036.30

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Solution

The fourth proportional to 190,934.72, 286,652.37 and 128,036.30 is: 192,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,934.72 : 286,652.37 = 128,036.30 : x
  2. Step 2: Convert to fraction form
    190,934.72/286,652.37 = 128,036.30/x
  3. Step 3: Cross multiply
    190,934.72x = 286,652.37 × 128,036.30
  4. Step 4: Simplify right side
    190,934.72x = 36,701,907,167.70
  5. Step 5: Solve for x
    x = 36,701,907,167.70/190,934.72
  6. Step 6: Final answer
    x = 192,222.28

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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.