Home / 123,833.07-170,890.29-70,128.54

Finding the Fourth Proportional to 123,833.07, 170,890.29 and 70,128.54

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Solution

The fourth proportional to 123,833.07, 170,890.29 and 70,128.54 is: 96,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,833.07 : 170,890.29 = 70,128.54 : x
  2. Step 2: Convert to fraction form
    123,833.07/170,890.29 = 70,128.54/x
  3. Step 3: Cross multiply
    123,833.07x = 170,890.29 × 70,128.54
  4. Step 4: Simplify right side
    123,833.07x = 11,984,286,537.88
  5. Step 5: Solve for x
    x = 11,984,286,537.88/123,833.07
  6. Step 6: Final answer
    x = 96,777.76

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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.