Home / 210,853.94-291,098.74-139,441.10

Finding the Fourth Proportional to 210,853.94, 291,098.74 and 139,441.10

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Solution

The fourth proportional to 210,853.94, 291,098.74 and 139,441.10 is: 192,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,853.94 : 291,098.74 = 139,441.10 : x
  2. Step 2: Convert to fraction form
    210,853.94/291,098.74 = 139,441.10/x
  3. Step 3: Cross multiply
    210,853.94x = 291,098.74 × 139,441.10
  4. Step 4: Simplify right side
    210,853.94x = 40,591,128,514.21
  5. Step 5: Solve for x
    x = 40,591,128,514.21/210,853.94
  6. Step 6: Final answer
    x = 192,508.28

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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.