Home / 101,686.23-140,332.16-58,649.72

Finding the Fourth Proportional to 101,686.23, 140,332.16 and 58,649.72

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Solution

The fourth proportional to 101,686.23, 140,332.16 and 58,649.72 is: 80,939.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,686.23 : 140,332.16 = 58,649.72 : x
  2. Step 2: Convert to fraction form
    101,686.23/140,332.16 = 58,649.72/x
  3. Step 3: Cross multiply
    101,686.23x = 140,332.16 × 58,649.72
  4. Step 4: Simplify right side
    101,686.23x = 8,230,440,896.09
  5. Step 5: Solve for x
    x = 8,230,440,896.09/101,686.23
  6. Step 6: Final answer
    x = 80,939.58

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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.