Home / 219,149.06-328,732.96-86,058.11

Finding the Fourth Proportional to 219,149.06, 328,732.96 and 86,058.11

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Solution

The fourth proportional to 219,149.06, 328,732.96 and 86,058.11 is: 129,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,149.06 : 328,732.96 = 86,058.11 : x
  2. Step 2: Convert to fraction form
    219,149.06/328,732.96 = 86,058.11/x
  3. Step 3: Cross multiply
    219,149.06x = 328,732.96 × 86,058.11
  4. Step 4: Simplify right side
    219,149.06x = 28,290,136,151.23
  5. Step 5: Solve for x
    x = 28,290,136,151.23/219,149.06
  6. Step 6: Final answer
    x = 129,090.84

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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.