Home / 192,693.14-288,665.68-142,000.18

Finding the Fourth Proportional to 192,693.14, 288,665.68 and 142,000.18

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Solution

The fourth proportional to 192,693.14, 288,665.68 and 142,000.18 is: 212,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,693.14 : 288,665.68 = 142,000.18 : x
  2. Step 2: Convert to fraction form
    192,693.14/288,665.68 = 142,000.18/x
  3. Step 3: Cross multiply
    192,693.14x = 288,665.68 × 142,000.18
  4. Step 4: Simplify right side
    192,693.14x = 40,990,578,519.82
  5. Step 5: Solve for x
    x = 40,990,578,519.82/192,693.14
  6. Step 6: Final answer
    x = 212,724.64

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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.