Home / 102,355.44-153,346.10-74,205.72

Finding the Fourth Proportional to 102,355.44, 153,346.10 and 74,205.72

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Solution

The fourth proportional to 102,355.44, 153,346.10 and 74,205.72 is: 111,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.44 : 153,346.10 = 74,205.72 : x
  2. Step 2: Convert to fraction form
    102,355.44/153,346.10 = 74,205.72/x
  3. Step 3: Cross multiply
    102,355.44x = 153,346.10 × 74,205.72
  4. Step 4: Simplify right side
    102,355.44x = 11,379,157,759.69
  5. Step 5: Solve for x
    x = 11,379,157,759.69/102,355.44
  6. Step 6: Final answer
    x = 111,172.97

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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.