Home / 136,969.04-189,016.97-76,539.69

Finding the Fourth Proportional to 136,969.04, 189,016.97 and 76,539.69

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Solution

The fourth proportional to 136,969.04, 189,016.97 and 76,539.69 is: 105,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,969.04 : 189,016.97 = 76,539.69 : x
  2. Step 2: Convert to fraction form
    136,969.04/189,016.97 = 76,539.69/x
  3. Step 3: Cross multiply
    136,969.04x = 189,016.97 × 76,539.69
  4. Step 4: Simplify right side
    136,969.04x = 14,467,300,178.21
  5. Step 5: Solve for x
    x = 14,467,300,178.21/136,969.04
  6. Step 6: Final answer
    x = 105,624.60

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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.