Home / 117,817.36-162,588.66-64,102.78

Finding the Fourth Proportional to 117,817.36, 162,588.66 and 64,102.78

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Solution

The fourth proportional to 117,817.36, 162,588.66 and 64,102.78 is: 88,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,817.36 : 162,588.66 = 64,102.78 : x
  2. Step 2: Convert to fraction form
    117,817.36/162,588.66 = 64,102.78/x
  3. Step 3: Cross multiply
    117,817.36x = 162,588.66 × 64,102.78
  4. Step 4: Simplify right side
    117,817.36x = 10,422,385,102.47
  5. Step 5: Solve for x
    x = 10,422,385,102.47/117,817.36
  6. Step 6: Final answer
    x = 88,462.22

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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.