Home / 250,081.20-345,111.48-136,902.96

Finding the Fourth Proportional to 250,081.20, 345,111.48 and 136,902.96

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Solution

The fourth proportional to 250,081.20, 345,111.48 and 136,902.96 is: 188,925.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,081.20 : 345,111.48 = 136,902.96 : x
  2. Step 2: Convert to fraction form
    250,081.20/345,111.48 = 136,902.96/x
  3. Step 3: Cross multiply
    250,081.20x = 345,111.48 × 136,902.96
  4. Step 4: Simplify right side
    250,081.20x = 47,246,783,141.98
  5. Step 5: Solve for x
    x = 47,246,783,141.98/250,081.20
  6. Step 6: Final answer
    x = 188,925.77

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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.