Home / 145,401.58-200,632.44-81,727.24

Finding the Fourth Proportional to 145,401.58, 200,632.44 and 81,727.24

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Solution

The fourth proportional to 145,401.58, 200,632.44 and 81,727.24 is: 112,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,401.58 : 200,632.44 = 81,727.24 : x
  2. Step 2: Convert to fraction form
    145,401.58/200,632.44 = 81,727.24/x
  3. Step 3: Cross multiply
    145,401.58x = 200,632.44 × 81,727.24
  4. Step 4: Simplify right side
    145,401.58x = 16,397,135,575.67
  5. Step 5: Solve for x
    x = 16,397,135,575.67/145,401.58
  6. Step 6: Final answer
    x = 112,771.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.