Home / 148,653.70-205,142.23-80,670.67

Finding the Fourth Proportional to 148,653.70, 205,142.23 and 80,670.67

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Solution

The fourth proportional to 148,653.70, 205,142.23 and 80,670.67 is: 111,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,653.70 : 205,142.23 = 80,670.67 : x
  2. Step 2: Convert to fraction form
    148,653.70/205,142.23 = 80,670.67/x
  3. Step 3: Cross multiply
    148,653.70x = 205,142.23 × 80,670.67
  4. Step 4: Simplify right side
    148,653.70x = 16,548,960,500.49
  5. Step 5: Solve for x
    x = 16,548,960,500.49/148,653.70
  6. Step 6: Final answer
    x = 111,325.59

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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.