Home / 190,665.45-286,091.47-76,808.52

Finding the Fourth Proportional to 190,665.45, 286,091.47 and 76,808.52

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Solution

The fourth proportional to 190,665.45, 286,091.47 and 76,808.52 is: 115,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,665.45 : 286,091.47 = 76,808.52 : x
  2. Step 2: Convert to fraction form
    190,665.45/286,091.47 = 76,808.52/x
  3. Step 3: Cross multiply
    190,665.45x = 286,091.47 × 76,808.52
  4. Step 4: Simplify right side
    190,665.45x = 21,974,263,482.26
  5. Step 5: Solve for x
    x = 21,974,263,482.26/190,665.45
  6. Step 6: Final answer
    x = 115,250.37

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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.