Home / 236,820.18-326,816.56-129,396.88

Finding the Fourth Proportional to 236,820.18, 326,816.56 and 129,396.88

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Solution

The fourth proportional to 236,820.18, 326,816.56 and 129,396.88 is: 178,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,820.18 : 326,816.56 = 129,396.88 : x
  2. Step 2: Convert to fraction form
    236,820.18/326,816.56 = 129,396.88/x
  3. Step 3: Cross multiply
    236,820.18x = 326,816.56 × 129,396.88
  4. Step 4: Simplify right side
    236,820.18x = 42,289,043,038.74
  5. Step 5: Solve for x
    x = 42,289,043,038.74/236,820.18
  6. Step 6: Final answer
    x = 178,570.27

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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.