Home / 190,270.40-285,380.92-71,926.32

Finding the Fourth Proportional to 190,270.40, 285,380.92 and 71,926.32

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Solution

The fourth proportional to 190,270.40, 285,380.92 and 71,926.32 is: 107,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,270.40 : 285,380.92 = 71,926.32 : x
  2. Step 2: Convert to fraction form
    190,270.40/285,380.92 = 71,926.32/x
  3. Step 3: Cross multiply
    190,270.40x = 285,380.92 × 71,926.32
  4. Step 4: Simplify right side
    190,270.40x = 20,526,399,373.81
  5. Step 5: Solve for x
    x = 20,526,399,373.81/190,270.40
  6. Step 6: Final answer
    x = 107,880.15

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1.5x scale

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.