Home / 139,173.39-192,215.75-93,771.87

Finding the Fourth Proportional to 139,173.39, 192,215.75 and 93,771.87

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Solution

The fourth proportional to 139,173.39, 192,215.75 and 93,771.87 is: 129,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,173.39 : 192,215.75 = 93,771.87 : x
  2. Step 2: Convert to fraction form
    139,173.39/192,215.75 = 93,771.87/x
  3. Step 3: Cross multiply
    139,173.39x = 192,215.75 × 93,771.87
  4. Step 4: Simplify right side
    139,173.39x = 18,024,429,852.09
  5. Step 5: Solve for x
    x = 18,024,429,852.09/139,173.39
  6. Step 6: Final answer
    x = 129,510.60

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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.