Home / 117,131.10-161,638.96-63,415.68

Finding the Fourth Proportional to 117,131.10, 161,638.96 and 63,415.68

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Solution

The fourth proportional to 117,131.10, 161,638.96 and 63,415.68 is: 87,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,131.10 : 161,638.96 = 63,415.68 : x
  2. Step 2: Convert to fraction form
    117,131.10/161,638.96 = 63,415.68/x
  3. Step 3: Cross multiply
    117,131.10x = 161,638.96 × 63,415.68
  4. Step 4: Simplify right side
    117,131.10x = 10,250,444,562.89
  5. Step 5: Solve for x
    x = 10,250,444,562.89/117,131.10
  6. Step 6: Final answer
    x = 87,512.58

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1.5x scale

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.