Home / 189,971.84-262,160.06-105,087.08

Finding the Fourth Proportional to 189,971.84, 262,160.06 and 105,087.08

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Solution

The fourth proportional to 189,971.84, 262,160.06 and 105,087.08 is: 145,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,971.84 : 262,160.06 = 105,087.08 : x
  2. Step 2: Convert to fraction form
    189,971.84/262,160.06 = 105,087.08/x
  3. Step 3: Cross multiply
    189,971.84x = 262,160.06 × 105,087.08
  4. Step 4: Simplify right side
    189,971.84x = 27,549,635,198.02
  5. Step 5: Solve for x
    x = 27,549,635,198.02/189,971.84
  6. Step 6: Final answer
    x = 145,019.57

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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.