Home / 117,326.37-161,898.40-72,006.26

Finding the Fourth Proportional to 117,326.37, 161,898.40 and 72,006.26

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Solution

The fourth proportional to 117,326.37, 161,898.40 and 72,006.26 is: 99,361.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,326.37 : 161,898.40 = 72,006.26 : x
  2. Step 2: Convert to fraction form
    117,326.37/161,898.40 = 72,006.26/x
  3. Step 3: Cross multiply
    117,326.37x = 161,898.40 × 72,006.26
  4. Step 4: Simplify right side
    117,326.37x = 11,657,698,283.98
  5. Step 5: Solve for x
    x = 11,657,698,283.98/117,326.37
  6. Step 6: Final answer
    x = 99,361.28

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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.