Home / 190,293.60-285,480.47-71,962.32

Finding the Fourth Proportional to 190,293.60, 285,480.47 and 71,962.32

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Solution

The fourth proportional to 190,293.60, 285,480.47 and 71,962.32 is: 107,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,293.60 : 285,480.47 = 71,962.32 : x
  2. Step 2: Convert to fraction form
    190,293.60/285,480.47 = 71,962.32/x
  3. Step 3: Cross multiply
    190,293.60x = 285,480.47 × 71,962.32
  4. Step 4: Simplify right side
    190,293.60x = 20,543,836,935.89
  5. Step 5: Solve for x
    x = 20,543,836,935.89/190,293.60
  6. Step 6: Final answer
    x = 107,958.63

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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.