Home / 212,987.38-293,792.34-136,480.72

Finding the Fourth Proportional to 212,987.38, 293,792.34 and 136,480.72

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Solution

The fourth proportional to 212,987.38, 293,792.34 and 136,480.72 is: 188,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,987.38 : 293,792.34 = 136,480.72 : x
  2. Step 2: Convert to fraction form
    212,987.38/293,792.34 = 136,480.72/x
  3. Step 3: Cross multiply
    212,987.38x = 293,792.34 × 136,480.72
  4. Step 4: Simplify right side
    212,987.38x = 40,096,990,093.68
  5. Step 5: Solve for x
    x = 40,096,990,093.68/212,987.38
  6. Step 6: Final answer
    x = 188,259.93

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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.