Home / 139,326.76-192,272.34-75,665.80

Finding the Fourth Proportional to 139,326.76, 192,272.34 and 75,665.80

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Solution

The fourth proportional to 139,326.76, 192,272.34 and 75,665.80 is: 104,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,326.76 : 192,272.34 = 75,665.80 : x
  2. Step 2: Convert to fraction form
    139,326.76/192,272.34 = 75,665.80/x
  3. Step 3: Cross multiply
    139,326.76x = 192,272.34 × 75,665.80
  4. Step 4: Simplify right side
    139,326.76x = 14,548,440,423.97
  5. Step 5: Solve for x
    x = 14,548,440,423.97/139,326.76
  6. Step 6: Final answer
    x = 104,419.57

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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.