Home / 236,190.56-354,208.80-78,376.64

Finding the Fourth Proportional to 236,190.56, 354,208.80 and 78,376.64

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Solution

The fourth proportional to 236,190.56, 354,208.80 and 78,376.64 is: 117,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,190.56 : 354,208.80 = 78,376.64 : x
  2. Step 2: Convert to fraction form
    236,190.56/354,208.80 = 78,376.64/x
  3. Step 3: Cross multiply
    236,190.56x = 354,208.80 × 78,376.64
  4. Step 4: Simplify right side
    236,190.56x = 27,761,695,602.43
  5. Step 5: Solve for x
    x = 27,761,695,602.43/236,190.56
  6. Step 6: Final answer
    x = 117,539.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.