Home / 189,984.51-262,168.52-105,099.75

Finding the Fourth Proportional to 189,984.51, 262,168.52 and 105,099.75

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Solution

The fourth proportional to 189,984.51, 262,168.52 and 105,099.75 is: 145,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,984.51 : 262,168.52 = 105,099.75 : x
  2. Step 2: Convert to fraction form
    189,984.51/262,168.52 = 105,099.75/x
  3. Step 3: Cross multiply
    189,984.51x = 262,168.52 × 105,099.75
  4. Step 4: Simplify right side
    189,984.51x = 27,553,845,384.37
  5. Step 5: Solve for x
    x = 27,553,845,384.37/189,984.51
  6. Step 6: Final answer
    x = 145,032.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.