Home / 141,216.18-211,721.70-66,297.78

Finding the Fourth Proportional to 141,216.18, 211,721.70 and 66,297.78

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Solution

The fourth proportional to 141,216.18, 211,721.70 and 66,297.78 is: 99,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,216.18 : 211,721.70 = 66,297.78 : x
  2. Step 2: Convert to fraction form
    141,216.18/211,721.70 = 66,297.78/x
  3. Step 3: Cross multiply
    141,216.18x = 211,721.70 × 66,297.78
  4. Step 4: Simplify right side
    141,216.18x = 14,036,678,687.83
  5. Step 5: Solve for x
    x = 14,036,678,687.83/141,216.18
  6. Step 6: Final answer
    x = 99,398.52

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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.