Home / 122,830.03-169,505.13-69,115.11

Finding the Fourth Proportional to 122,830.03, 169,505.13 and 69,115.11

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Solution

The fourth proportional to 122,830.03, 169,505.13 and 69,115.11 is: 95,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,830.03 : 169,505.13 = 69,115.11 : x
  2. Step 2: Convert to fraction form
    122,830.03/169,505.13 = 69,115.11/x
  3. Step 3: Cross multiply
    122,830.03x = 169,505.13 × 69,115.11
  4. Step 4: Simplify right side
    122,830.03x = 11,715,365,705.51
  5. Step 5: Solve for x
    x = 11,715,365,705.51/122,830.03
  6. Step 6: Final answer
    x = 95,378.68

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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.