Home / 122,830.03-169,505.13-69,115.15

Finding the Fourth Proportional to 122,830.03, 169,505.13 and 69,115.15

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Solution

The fourth proportional to 122,830.03, 169,505.13 and 69,115.15 is: 95,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,830.03 : 169,505.13 = 69,115.15 : x
  2. Step 2: Convert to fraction form
    122,830.03/169,505.13 = 69,115.15/x
  3. Step 3: Cross multiply
    122,830.03x = 169,505.13 × 69,115.15
  4. Step 4: Simplify right side
    122,830.03x = 11,715,372,485.72
  5. Step 5: Solve for x
    x = 11,715,372,485.72/122,830.03
  6. Step 6: Final answer
    x = 95,378.73

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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.