Home / 139,664.48-192,733.12-76,000.80

Finding the Fourth Proportional to 139,664.48, 192,733.12 and 76,000.80

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Solution

The fourth proportional to 139,664.48, 192,733.12 and 76,000.80 is: 104,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.48 : 192,733.12 = 76,000.80 : x
  2. Step 2: Convert to fraction form
    139,664.48/192,733.12 = 76,000.80/x
  3. Step 3: Cross multiply
    139,664.48x = 192,733.12 × 76,000.80
  4. Step 4: Simplify right side
    139,664.48x = 14,647,871,306.50
  5. Step 5: Solve for x
    x = 14,647,871,306.50/139,664.48
  6. Step 6: Final answer
    x = 104,879.00

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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.