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Finding the Fourth Proportional to 111,952.64, 154,495.68 and 61,652

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Solution

The fourth proportional to 111,952.64, 154,495.68 and 61,652 is: 85,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,952.64 : 154,495.68 = 61,652 : x
  2. Step 2: Convert to fraction form
    111,952.64/154,495.68 = 61,652/x
  3. Step 3: Cross multiply
    111,952.64x = 154,495.68 × 61,652
  4. Step 4: Simplify right side
    111,952.64x = 9,524,967,663.36
  5. Step 5: Solve for x
    x = 9,524,967,663.36/111,952.64
  6. Step 6: Final answer
    x = 85,080.33

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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.