Home / 236,539.60-326,412.66-129,108.76

Finding the Fourth Proportional to 236,539.60, 326,412.66 and 129,108.76

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Solution

The fourth proportional to 236,539.60, 326,412.66 and 129,108.76 is: 178,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,539.60 : 326,412.66 = 129,108.76 : x
  2. Step 2: Convert to fraction form
    236,539.60/326,412.66 = 129,108.76/x
  3. Step 3: Cross multiply
    236,539.60x = 326,412.66 × 129,108.76
  4. Step 4: Simplify right side
    236,539.60x = 42,142,733,780.90
  5. Step 5: Solve for x
    x = 42,142,733,780.90/236,539.60
  6. Step 6: Final answer
    x = 178,163.55

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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.