Home / 136,415.72-188,247.46-75,983.08

Finding the Fourth Proportional to 136,415.72, 188,247.46 and 75,983.08

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Solution

The fourth proportional to 136,415.72, 188,247.46 and 75,983.08 is: 104,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,415.72 : 188,247.46 = 75,983.08 : x
  2. Step 2: Convert to fraction form
    136,415.72/188,247.46 = 75,983.08/x
  3. Step 3: Cross multiply
    136,415.72x = 188,247.46 × 75,983.08
  4. Step 4: Simplify right side
    136,415.72x = 14,303,621,812.98
  5. Step 5: Solve for x
    x = 14,303,621,812.98/136,415.72
  6. Step 6: Final answer
    x = 104,853.18

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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.