Home / 129,656.14-178,518.30-110,236.86

Finding the Fourth Proportional to 129,656.14, 178,518.30 and 110,236.86

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Solution

The fourth proportional to 129,656.14, 178,518.30 and 110,236.86 is: 151,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656.14 : 178,518.30 = 110,236.86 : x
  2. Step 2: Convert to fraction form
    129,656.14/178,518.30 = 110,236.86/x
  3. Step 3: Cross multiply
    129,656.14x = 178,518.30 × 110,236.86
  4. Step 4: Simplify right side
    129,656.14x = 19,679,296,844.54
  5. Step 5: Solve for x
    x = 19,679,296,844.54/129,656.14
  6. Step 6: Final answer
    x = 151,780.68

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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.