Home / 136,914.84-188,935.72-76,473.45

Finding the Fourth Proportional to 136,914.84, 188,935.72 and 76,473.45

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Solution

The fourth proportional to 136,914.84, 188,935.72 and 76,473.45 is: 105,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,914.84 : 188,935.72 = 76,473.45 : x
  2. Step 2: Convert to fraction form
    136,914.84/188,935.72 = 76,473.45/x
  3. Step 3: Cross multiply
    136,914.84x = 188,935.72 × 76,473.45
  4. Step 4: Simplify right side
    136,914.84x = 14,448,566,336.63
  5. Step 5: Solve for x
    x = 14,448,566,336.63/136,914.84
  6. Step 6: Final answer
    x = 105,529.59

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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.