Home / 190,270.80-285,438.57-65,582.64

Finding the Fourth Proportional to 190,270.80, 285,438.57 and 65,582.64

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Solution

The fourth proportional to 190,270.80, 285,438.57 and 65,582.64 is: 98,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,270.80 : 285,438.57 = 65,582.64 : x
  2. Step 2: Convert to fraction form
    190,270.80/285,438.57 = 65,582.64/x
  3. Step 3: Cross multiply
    190,270.80x = 285,438.57 × 65,582.64
  4. Step 4: Simplify right side
    190,270.80x = 18,719,814,978.42
  5. Step 5: Solve for x
    x = 18,719,814,978.42/190,270.80
  6. Step 6: Final answer
    x = 98,385.12

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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.