Home / 285,962.36-428,664.63-136,162.40

Finding the Fourth Proportional to 285,962.36, 428,664.63 and 136,162.40

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Solution

The fourth proportional to 285,962.36, 428,664.63 and 136,162.40 is: 204,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,962.36 : 428,664.63 = 136,162.40 : x
  2. Step 2: Convert to fraction form
    285,962.36/428,664.63 = 136,162.40/x
  3. Step 3: Cross multiply
    285,962.36x = 428,664.63 × 136,162.40
  4. Step 4: Simplify right side
    285,962.36x = 58,368,004,815.91
  5. Step 5: Solve for x
    x = 58,368,004,815.91/285,962.36
  6. Step 6: Final answer
    x = 204,110.80

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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.