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Finding the Fourth Proportional to 180,245.74, 248,740.74 and 99,678.72

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Solution

The fourth proportional to 180,245.74, 248,740.74 and 99,678.72 is: 137,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,245.74 : 248,740.74 = 99,678.72 : x
  2. Step 2: Convert to fraction form
    180,245.74/248,740.74 = 99,678.72/x
  3. Step 3: Cross multiply
    180,245.74x = 248,740.74 × 99,678.72
  4. Step 4: Simplify right side
    180,245.74x = 24,794,158,575.05
  5. Step 5: Solve for x
    x = 24,794,158,575.05/180,245.74
  6. Step 6: Final answer
    x = 137,557.53

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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.