Home / 236,650.60-326,579.03-129,220.63

Finding the Fourth Proportional to 236,650.60, 326,579.03 and 129,220.63

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Solution

The fourth proportional to 236,650.60, 326,579.03 and 129,220.63 is: 178,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,650.60 : 326,579.03 = 129,220.63 : x
  2. Step 2: Convert to fraction form
    236,650.60/326,579.03 = 129,220.63/x
  3. Step 3: Cross multiply
    236,650.60x = 326,579.03 × 129,220.63
  4. Step 4: Simplify right side
    236,650.60x = 42,200,748,001.39
  5. Step 5: Solve for x
    x = 42,200,748,001.39/236,650.60
  6. Step 6: Final answer
    x = 178,325.13

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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.