Home / 128,326-192,485.76-34,829.32

Finding the Fourth Proportional to 128,326, 192,485.76 and 34,829.32

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Solution

The fourth proportional to 128,326, 192,485.76 and 34,829.32 is: 52,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,326 : 192,485.76 = 34,829.32 : x
  2. Step 2: Convert to fraction form
    128,326/192,485.76 = 34,829.32/x
  3. Step 3: Cross multiply
    128,326x = 192,485.76 × 34,829.32
  4. Step 4: Simplify right side
    128,326x = 6,704,148,130.48
  5. Step 5: Solve for x
    x = 6,704,148,130.48/128,326
  6. Step 6: Final answer
    x = 52,243.10

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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.