Home / 122,877.72-169,537.32-69,159.60

Finding the Fourth Proportional to 122,877.72, 169,537.32 and 69,159.60

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Solution

The fourth proportional to 122,877.72, 169,537.32 and 69,159.60 is: 95,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,877.72 : 169,537.32 = 69,159.60 : x
  2. Step 2: Convert to fraction form
    122,877.72/169,537.32 = 69,159.60/x
  3. Step 3: Cross multiply
    122,877.72x = 169,537.32 × 69,159.60
  4. Step 4: Simplify right side
    122,877.72x = 11,725,133,236.27
  5. Step 5: Solve for x
    x = 11,725,133,236.27/122,877.72
  6. Step 6: Final answer
    x = 95,421.15

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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.