Home / 117,885.28-162,683.76-64,171.84

Finding the Fourth Proportional to 117,885.28, 162,683.76 and 64,171.84

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Solution

The fourth proportional to 117,885.28, 162,683.76 and 64,171.84 is: 88,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,885.28 : 162,683.76 = 64,171.84 : x
  2. Step 2: Convert to fraction form
    117,885.28/162,683.76 = 64,171.84/x
  3. Step 3: Cross multiply
    117,885.28x = 162,683.76 × 64,171.84
  4. Step 4: Simplify right side
    117,885.28x = 10,439,716,217.32
  5. Step 5: Solve for x
    x = 10,439,716,217.32/117,885.28
  6. Step 6: Final answer
    x = 88,558.27

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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.