Home / 250,134.72-345,186-136,964.64

Finding the Fourth Proportional to 250,134.72, 345,186 and 136,964.64

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Solution

The fourth proportional to 250,134.72, 345,186 and 136,964.64 is: 189,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,134.72 : 345,186 = 136,964.64 : x
  2. Step 2: Convert to fraction form
    250,134.72/345,186 = 136,964.64/x
  3. Step 3: Cross multiply
    250,134.72x = 345,186 × 136,964.64
  4. Step 4: Simplify right side
    250,134.72x = 47,278,276,223.04
  5. Step 5: Solve for x
    x = 47,278,276,223.04/250,134.72
  6. Step 6: Final answer
    x = 189,011.25

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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.