Home / 141,018.80-211,460.14-81,869.36

Finding the Fourth Proportional to 141,018.80, 211,460.14 and 81,869.36

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Solution

The fourth proportional to 141,018.80, 211,460.14 and 81,869.36 is: 122,764.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,018.80 : 211,460.14 = 81,869.36 : x
  2. Step 2: Convert to fraction form
    141,018.80/211,460.14 = 81,869.36/x
  3. Step 3: Cross multiply
    141,018.80x = 211,460.14 × 81,869.36
  4. Step 4: Simplify right side
    141,018.80x = 17,312,106,327.31
  5. Step 5: Solve for x
    x = 17,312,106,327.31/141,018.80
  6. Step 6: Final answer
    x = 122,764.53

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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.