Home / 136,965.63-189,008.94-76,536.77

Finding the Fourth Proportional to 136,965.63, 189,008.94 and 76,536.77

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Solution

The fourth proportional to 136,965.63, 189,008.94 and 76,536.77 is: 105,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,965.63 : 189,008.94 = 76,536.77 : x
  2. Step 2: Convert to fraction form
    136,965.63/189,008.94 = 76,536.77/x
  3. Step 3: Cross multiply
    136,965.63x = 189,008.94 × 76,536.77
  4. Step 4: Simplify right side
    136,965.63x = 14,466,133,768.72
  5. Step 5: Solve for x
    x = 14,466,133,768.72/136,965.63
  6. Step 6: Final answer
    x = 105,618.71

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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.