Home / 122,656.59-169,267.68-68,938.47

Finding the Fourth Proportional to 122,656.59, 169,267.68 and 68,938.47

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Solution

The fourth proportional to 122,656.59, 169,267.68 and 68,938.47 is: 95,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,656.59 : 169,267.68 = 68,938.47 : x
  2. Step 2: Convert to fraction form
    122,656.59/169,267.68 = 68,938.47/x
  3. Step 3: Cross multiply
    122,656.59x = 169,267.68 × 68,938.47
  4. Step 4: Simplify right side
    122,656.59x = 11,669,054,879.65
  5. Step 5: Solve for x
    x = 11,669,054,879.65/122,656.59
  6. Step 6: Final answer
    x = 95,135.98

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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.