Home / 190,958.08-286,440-66,303.04

Finding the Fourth Proportional to 190,958.08, 286,440 and 66,303.04

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Solution

The fourth proportional to 190,958.08, 286,440 and 66,303.04 is: 99,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,958.08 : 286,440 = 66,303.04 : x
  2. Step 2: Convert to fraction form
    190,958.08/286,440 = 66,303.04/x
  3. Step 3: Cross multiply
    190,958.08x = 286,440 × 66,303.04
  4. Step 4: Simplify right side
    190,958.08x = 18,991,842,777.60
  5. Step 5: Solve for x
    x = 18,991,842,777.60/190,958.08
  6. Step 6: Final answer
    x = 99,455.56

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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.