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Finding the Fourth Proportional to 154,814.52, 213,646.48 and 86,846.60

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Solution

The fourth proportional to 154,814.52, 213,646.48 and 86,846.60 is: 119,849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,814.52 : 213,646.48 = 86,846.60 : x
  2. Step 2: Convert to fraction form
    154,814.52/213,646.48 = 86,846.60/x
  3. Step 3: Cross multiply
    154,814.52x = 213,646.48 × 86,846.60
  4. Step 4: Simplify right side
    154,814.52x = 18,554,470,389.97
  5. Step 5: Solve for x
    x = 18,554,470,389.97/154,814.52
  6. Step 6: Final answer
    x = 119,849.68

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1.5x scale

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.