Home / 189,971.07-284,674.62-105,615.19

Finding the Fourth Proportional to 189,971.07, 284,674.62 and 105,615.19

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Solution

The fourth proportional to 189,971.07, 284,674.62 and 105,615.19 is: 158,266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,971.07 : 284,674.62 = 105,615.19 : x
  2. Step 2: Convert to fraction form
    189,971.07/284,674.62 = 105,615.19/x
  3. Step 3: Cross multiply
    189,971.07x = 284,674.62 × 105,615.19
  4. Step 4: Simplify right side
    189,971.07x = 30,065,964,237.29
  5. Step 5: Solve for x
    x = 30,065,964,237.29/189,971.07
  6. Step 6: Final answer
    x = 158,266.01

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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.