Home / 139,398.57-192,373.79-75,740.67

Finding the Fourth Proportional to 139,398.57, 192,373.79 and 75,740.67

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Solution

The fourth proportional to 139,398.57, 192,373.79 and 75,740.67 is: 104,524.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,398.57 : 192,373.79 = 75,740.67 : x
  2. Step 2: Convert to fraction form
    139,398.57/192,373.79 = 75,740.67/x
  3. Step 3: Cross multiply
    139,398.57x = 192,373.79 × 75,740.67
  4. Step 4: Simplify right side
    139,398.57x = 14,570,519,366.34
  5. Step 5: Solve for x
    x = 14,570,519,366.34/139,398.57
  6. Step 6: Final answer
    x = 104,524.17

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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.