Home / 97,733.20-146,470.20-86,587.60

Finding the Fourth Proportional to 97,733.20, 146,470.20 and 86,587.60

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Solution

The fourth proportional to 97,733.20, 146,470.20 and 86,587.60 is: 129,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,733.20 : 146,470.20 = 86,587.60 : x
  2. Step 2: Convert to fraction form
    97,733.20/146,470.20 = 86,587.60/x
  3. Step 3: Cross multiply
    97,733.20x = 146,470.20 × 86,587.60
  4. Step 4: Simplify right side
    97,733.20x = 12,682,503,089.52
  5. Step 5: Solve for x
    x = 12,682,503,089.52/97,733.20
  6. Step 6: Final answer
    x = 129,766.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.