Home / 122,641.82-169,374.22-84,500.54

Finding the Fourth Proportional to 122,641.82, 169,374.22 and 84,500.54

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Solution

The fourth proportional to 122,641.82, 169,374.22 and 84,500.54 is: 116,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,641.82 : 169,374.22 = 84,500.54 : x
  2. Step 2: Convert to fraction form
    122,641.82/169,374.22 = 84,500.54/x
  3. Step 3: Cross multiply
    122,641.82x = 169,374.22 × 84,500.54
  4. Step 4: Simplify right side
    122,641.82x = 14,312,213,052.08
  5. Step 5: Solve for x
    x = 14,312,213,052.08/122,641.82
  6. Step 6: Final answer
    x = 116,699.29

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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.