Home / 141,081.80-211,622.70-139,008.20

Finding the Fourth Proportional to 141,081.80, 211,622.70 and 139,008.20

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Solution

The fourth proportional to 141,081.80, 211,622.70 and 139,008.20 is: 208,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,081.80 : 211,622.70 = 139,008.20 : x
  2. Step 2: Convert to fraction form
    141,081.80/211,622.70 = 139,008.20/x
  3. Step 3: Cross multiply
    141,081.80x = 211,622.70 × 139,008.20
  4. Step 4: Simplify right side
    141,081.80x = 29,417,290,606.14
  5. Step 5: Solve for x
    x = 29,417,290,606.14/141,081.80
  6. Step 6: Final answer
    x = 208,512.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.