Home / 136,996.94-189,055.08-76,567.56

Finding the Fourth Proportional to 136,996.94, 189,055.08 and 76,567.56

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Solution

The fourth proportional to 136,996.94, 189,055.08 and 76,567.56 is: 105,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,996.94 : 189,055.08 = 76,567.56 : x
  2. Step 2: Convert to fraction form
    136,996.94/189,055.08 = 76,567.56/x
  3. Step 3: Cross multiply
    136,996.94x = 189,055.08 × 76,567.56
  4. Step 4: Simplify right side
    136,996.94x = 14,475,486,181.20
  5. Step 5: Solve for x
    x = 14,475,486,181.20/136,996.94
  6. Step 6: Final answer
    x = 105,662.84

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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.