Home / 190,378.39-285,530.66-72,058.96

Finding the Fourth Proportional to 190,378.39, 285,530.66 and 72,058.96

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Solution

The fourth proportional to 190,378.39, 285,530.66 and 72,058.96 is: 108,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,378.39 : 285,530.66 = 72,058.96 : x
  2. Step 2: Convert to fraction form
    190,378.39/285,530.66 = 72,058.96/x
  3. Step 3: Cross multiply
    190,378.39x = 285,530.66 × 72,058.96
  4. Step 4: Simplify right side
    190,378.39x = 20,575,040,619.77
  5. Step 5: Solve for x
    x = 20,575,040,619.77/190,378.39
  6. Step 6: Final answer
    x = 108,074.46

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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.