Home / 148,289.63-204,639.88-80,306.72

Finding the Fourth Proportional to 148,289.63, 204,639.88 and 80,306.72

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Solution

The fourth proportional to 148,289.63, 204,639.88 and 80,306.72 is: 110,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,289.63 : 204,639.88 = 80,306.72 : x
  2. Step 2: Convert to fraction form
    148,289.63/204,639.88 = 80,306.72/x
  3. Step 3: Cross multiply
    148,289.63x = 204,639.88 × 80,306.72
  4. Step 4: Simplify right side
    148,289.63x = 16,433,956,520.79
  5. Step 5: Solve for x
    x = 16,433,956,520.79/148,289.63
  6. Step 6: Final answer
    x = 110,823.37

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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.