Home / 122,977.00-169,786.60-100,369.92

Finding the Fourth Proportional to 122,977.00, 169,786.60 and 100,369.92

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Solution

The fourth proportional to 122,977.00, 169,786.60 and 100,369.92 is: 138,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,977.00 : 169,786.60 = 100,369.92 : x
  2. Step 2: Convert to fraction form
    122,977.00/169,786.60 = 100,369.92/x
  3. Step 3: Cross multiply
    122,977.00x = 169,786.60 × 100,369.92
  4. Step 4: Simplify right side
    122,977.00x = 17,041,467,459.07
  5. Step 5: Solve for x
    x = 17,041,467,459.07/122,977.00
  6. Step 6: Final answer
    x = 138,574.43

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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.