Home / 123,555.78-185,333.67-30,060.72

Finding the Fourth Proportional to 123,555.78, 185,333.67 and 30,060.72

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Solution

The fourth proportional to 123,555.78, 185,333.67 and 30,060.72 is: 45,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,555.78 : 185,333.67 = 30,060.72 : x
  2. Step 2: Convert to fraction form
    123,555.78/185,333.67 = 30,060.72/x
  3. Step 3: Cross multiply
    123,555.78x = 185,333.67 × 30,060.72
  4. Step 4: Simplify right side
    123,555.78x = 5,571,263,560.44
  5. Step 5: Solve for x
    x = 5,571,263,560.44/123,555.78
  6. Step 6: Final answer
    x = 45,091.08

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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.