Home / 117,620.28-162,315.72-63,905.51

Finding the Fourth Proportional to 117,620.28, 162,315.72 and 63,905.51

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Solution

The fourth proportional to 117,620.28, 162,315.72 and 63,905.51 is: 88,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.28 : 162,315.72 = 63,905.51 : x
  2. Step 2: Convert to fraction form
    117,620.28/162,315.72 = 63,905.51/x
  3. Step 3: Cross multiply
    117,620.28x = 162,315.72 × 63,905.51
  4. Step 4: Simplify right side
    117,620.28x = 10,372,868,540.11
  5. Step 5: Solve for x
    x = 10,372,868,540.11/117,620.28
  6. Step 6: Final answer
    x = 88,189.46

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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.