Home / 236,821.73-326,810.17-129,389.45

Finding the Fourth Proportional to 236,821.73, 326,810.17 and 129,389.45

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Solution

The fourth proportional to 236,821.73, 326,810.17 and 129,389.45 is: 178,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,821.73 : 326,810.17 = 129,389.45 : x
  2. Step 2: Convert to fraction form
    236,821.73/326,810.17 = 129,389.45/x
  3. Step 3: Cross multiply
    236,821.73x = 326,810.17 × 129,389.45
  4. Step 4: Simplify right side
    236,821.73x = 42,285,788,644.26
  5. Step 5: Solve for x
    x = 42,285,788,644.26/236,821.73
  6. Step 6: Final answer
    x = 178,555.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.