Home / 190,839.10-286,149.30-57,699.40

Finding the Fourth Proportional to 190,839.10, 286,149.30 and 57,699.40

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Solution

The fourth proportional to 190,839.10, 286,149.30 and 57,699.40 is: 86,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,839.10 : 286,149.30 = 57,699.40 : x
  2. Step 2: Convert to fraction form
    190,839.10/286,149.30 = 57,699.40/x
  3. Step 3: Cross multiply
    190,839.10x = 286,149.30 × 57,699.40
  4. Step 4: Simplify right side
    190,839.10x = 16,510,642,920.42
  5. Step 5: Solve for x
    x = 16,510,642,920.42/190,839.10
  6. Step 6: Final answer
    x = 86,516.04

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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.