Home / 148,749.93-205,274.88-80,766.57

Finding the Fourth Proportional to 148,749.93, 205,274.88 and 80,766.57

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Solution

The fourth proportional to 148,749.93, 205,274.88 and 80,766.57 is: 111,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,749.93 : 205,274.88 = 80,766.57 : x
  2. Step 2: Convert to fraction form
    148,749.93/205,274.88 = 80,766.57/x
  3. Step 3: Cross multiply
    148,749.93x = 205,274.88 × 80,766.57
  4. Step 4: Simplify right side
    148,749.93x = 16,579,347,964.76
  5. Step 5: Solve for x
    x = 16,579,347,964.76/148,749.93
  6. Step 6: Final answer
    x = 111,457.85

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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.