Home / 250,141.72-345,195.66-136,971.64

Finding the Fourth Proportional to 250,141.72, 345,195.66 and 136,971.64

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Solution

The fourth proportional to 250,141.72, 345,195.66 and 136,971.64 is: 189,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,141.72 : 345,195.66 = 136,971.64 : x
  2. Step 2: Convert to fraction form
    250,141.72/345,195.66 = 136,971.64/x
  3. Step 3: Cross multiply
    250,141.72x = 345,195.66 × 136,971.64
  4. Step 4: Simplify right side
    250,141.72x = 47,282,015,671.08
  5. Step 5: Solve for x
    x = 47,282,015,671.08/250,141.72
  6. Step 6: Final answer
    x = 189,020.91

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1.5x scale

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.