Home / 285,771.60-428,389.20-96,099.35

Finding the Fourth Proportional to 285,771.60, 428,389.20 and 96,099.35

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Solution

The fourth proportional to 285,771.60, 428,389.20 and 96,099.35 is: 144,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,771.60 : 428,389.20 = 96,099.35 : x
  2. Step 2: Convert to fraction form
    285,771.60/428,389.20 = 96,099.35/x
  3. Step 3: Cross multiply
    285,771.60x = 428,389.20 × 96,099.35
  4. Step 4: Simplify right side
    285,771.60x = 41,167,921,525.07
  5. Step 5: Solve for x
    x = 41,167,921,525.07/285,771.60
  6. Step 6: Final answer
    x = 144,058.83

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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.