Home / 154,668.48-213,435.36-87,600.96

Finding the Fourth Proportional to 154,668.48, 213,435.36 and 87,600.96

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Solution

The fourth proportional to 154,668.48, 213,435.36 and 87,600.96 is: 120,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,668.48 : 213,435.36 = 87,600.96 : x
  2. Step 2: Convert to fraction form
    154,668.48/213,435.36 = 87,600.96/x
  3. Step 3: Cross multiply
    154,668.48x = 213,435.36 × 87,600.96
  4. Step 4: Simplify right side
    154,668.48x = 18,697,142,433.95
  5. Step 5: Solve for x
    x = 18,697,142,433.95/154,668.48
  6. Step 6: Final answer
    x = 120,885.28

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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.