Home / 139,088.05-191,941.56-75,425.83

Finding the Fourth Proportional to 139,088.05, 191,941.56 and 75,425.83

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Solution

The fourth proportional to 139,088.05, 191,941.56 and 75,425.83 is: 104,087.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,088.05 : 191,941.56 = 75,425.83 : x
  2. Step 2: Convert to fraction form
    139,088.05/191,941.56 = 75,425.83/x
  3. Step 3: Cross multiply
    139,088.05x = 191,941.56 × 75,425.83
  4. Step 4: Simplify right side
    139,088.05x = 14,477,351,474.49
  5. Step 5: Solve for x
    x = 14,477,351,474.49/139,088.05
  6. Step 6: Final answer
    x = 104,087.67

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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.