Home / 128,628.08-193,007.93-61,236.27

Finding the Fourth Proportional to 128,628.08, 193,007.93 and 61,236.27

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Solution

The fourth proportional to 128,628.08, 193,007.93 and 61,236.27 is: 91,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,628.08 : 193,007.93 = 61,236.27 : x
  2. Step 2: Convert to fraction form
    128,628.08/193,007.93 = 61,236.27/x
  3. Step 3: Cross multiply
    128,628.08x = 193,007.93 × 61,236.27
  4. Step 4: Simplify right side
    128,628.08x = 11,819,085,407.44
  5. Step 5: Solve for x
    x = 11,819,085,407.44/128,628.08
  6. Step 6: Final answer
    x = 91,885.74

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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.