Home / 219,127.26-328,877.40-86,100.54

Finding the Fourth Proportional to 219,127.26, 328,877.40 and 86,100.54

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Solution

The fourth proportional to 219,127.26, 328,877.40 and 86,100.54 is: 129,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,127.26 : 328,877.40 = 86,100.54 : x
  2. Step 2: Convert to fraction form
    219,127.26/328,877.40 = 86,100.54/x
  3. Step 3: Cross multiply
    219,127.26x = 328,877.40 × 86,100.54
  4. Step 4: Simplify right side
    219,127.26x = 28,316,521,733.80
  5. Step 5: Solve for x
    x = 28,316,521,733.80/219,127.26
  6. Step 6: Final answer
    x = 129,224.09

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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.