Home / 117,213.06-161,754.40-63,497.90

Finding the Fourth Proportional to 117,213.06, 161,754.40 and 63,497.90

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Solution

The fourth proportional to 117,213.06, 161,754.40 and 63,497.90 is: 87,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,213.06 : 161,754.40 = 63,497.90 : x
  2. Step 2: Convert to fraction form
    117,213.06/161,754.40 = 63,497.90/x
  3. Step 3: Cross multiply
    117,213.06x = 161,754.40 × 63,497.90
  4. Step 4: Simplify right side
    117,213.06x = 10,271,064,715.76
  5. Step 5: Solve for x
    x = 10,271,064,715.76/117,213.06
  6. Step 6: Final answer
    x = 87,627.31

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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.