Home / 236,539.35-326,412.32-129,108.51

Finding the Fourth Proportional to 236,539.35, 326,412.32 and 129,108.51

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Solution

The fourth proportional to 236,539.35, 326,412.32 and 129,108.51 is: 178,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,539.35 : 326,412.32 = 129,108.51 : x
  2. Step 2: Convert to fraction form
    236,539.35/326,412.32 = 129,108.51/x
  3. Step 3: Cross multiply
    236,539.35x = 326,412.32 × 129,108.51
  4. Step 4: Simplify right side
    236,539.35x = 42,142,607,635.30
  5. Step 5: Solve for x
    x = 42,142,607,635.30/236,539.35
  6. Step 6: Final answer
    x = 178,163.20

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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.