Home / 136,967.22-189,033.57-78,822.77

Finding the Fourth Proportional to 136,967.22, 189,033.57 and 78,822.77

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Solution

The fourth proportional to 136,967.22, 189,033.57 and 78,822.77 is: 108,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,967.22 : 189,033.57 = 78,822.77 : x
  2. Step 2: Convert to fraction form
    136,967.22/189,033.57 = 78,822.77/x
  3. Step 3: Cross multiply
    136,967.22x = 189,033.57 × 78,822.77
  4. Step 4: Simplify right side
    136,967.22x = 14,900,148,665.22
  5. Step 5: Solve for x
    x = 14,900,148,665.22/136,967.22
  6. Step 6: Final answer
    x = 108,786.24

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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.