Home / 236,638.20-326,573.94-129,218.20

Finding the Fourth Proportional to 236,638.20, 326,573.94 and 129,218.20

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Solution

The fourth proportional to 236,638.20, 326,573.94 and 129,218.20 is: 178,328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,638.20 : 326,573.94 = 129,218.20 : x
  2. Step 2: Convert to fraction form
    236,638.20/326,573.94 = 129,218.20/x
  3. Step 3: Cross multiply
    236,638.20x = 326,573.94 × 129,218.20
  4. Step 4: Simplify right side
    236,638.20x = 42,199,296,693.71
  5. Step 5: Solve for x
    x = 42,199,296,693.71/236,638.20
  6. Step 6: Final answer
    x = 178,328.34

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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.