Home / 236,821.25-326,809.52-129,388.98

Finding the Fourth Proportional to 236,821.25, 326,809.52 and 129,388.98

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Solution

The fourth proportional to 236,821.25, 326,809.52 and 129,388.98 is: 178,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,821.25 : 326,809.52 = 129,388.98 : x
  2. Step 2: Convert to fraction form
    236,821.25/326,809.52 = 129,388.98/x
  3. Step 3: Cross multiply
    236,821.25x = 326,809.52 × 129,388.98
  4. Step 4: Simplify right side
    236,821.25x = 42,285,551,510.89
  5. Step 5: Solve for x
    x = 42,285,551,510.89/236,821.25
  6. Step 6: Final answer
    x = 178,554.72

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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.