Home / 122,890.64-169,605.23-69,186.15

Finding the Fourth Proportional to 122,890.64, 169,605.23 and 69,186.15

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Solution

The fourth proportional to 122,890.64, 169,605.23 and 69,186.15 is: 95,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,890.64 : 169,605.23 = 69,186.15 : x
  2. Step 2: Convert to fraction form
    122,890.64/169,605.23 = 69,186.15/x
  3. Step 3: Cross multiply
    122,890.64x = 169,605.23 × 69,186.15
  4. Step 4: Simplify right side
    122,890.64x = 11,734,332,537.63
  5. Step 5: Solve for x
    x = 11,734,332,537.63/122,890.64
  6. Step 6: Final answer
    x = 95,485.98

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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.