Home / 117,958.28-162,783.47-64,243.53

Finding the Fourth Proportional to 117,958.28, 162,783.47 and 64,243.53

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Solution

The fourth proportional to 117,958.28, 162,783.47 and 64,243.53 is: 88,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,958.28 : 162,783.47 = 64,243.53 : x
  2. Step 2: Convert to fraction form
    117,958.28/162,783.47 = 64,243.53/x
  3. Step 3: Cross multiply
    117,958.28x = 162,783.47 × 64,243.53
  4. Step 4: Simplify right side
    117,958.28x = 10,457,784,899.06
  5. Step 5: Solve for x
    x = 10,457,784,899.06/117,958.28
  6. Step 6: Final answer
    x = 88,656.64

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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.