Home / 117,236.04-161,786.21-63,520.89

Finding the Fourth Proportional to 117,236.04, 161,786.21 and 63,520.89

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Solution

The fourth proportional to 117,236.04, 161,786.21 and 63,520.89 is: 87,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.04 : 161,786.21 = 63,520.89 : x
  2. Step 2: Convert to fraction form
    117,236.04/161,786.21 = 63,520.89/x
  3. Step 3: Cross multiply
    117,236.04x = 161,786.21 × 63,520.89
  4. Step 4: Simplify right side
    117,236.04x = 10,276,803,731.32
  5. Step 5: Solve for x
    x = 10,276,803,731.32/117,236.04
  6. Step 6: Final answer
    x = 87,659.08

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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.