Home / 117,817.68-162,588.40-64,102.72

Finding the Fourth Proportional to 117,817.68, 162,588.40 and 64,102.72

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Solution

The fourth proportional to 117,817.68, 162,588.40 and 64,102.72 is: 88,461.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,817.68 : 162,588.40 = 64,102.72 : x
  2. Step 2: Convert to fraction form
    117,817.68/162,588.40 = 64,102.72/x
  3. Step 3: Cross multiply
    117,817.68x = 162,588.40 × 64,102.72
  4. Step 4: Simplify right side
    117,817.68x = 10,422,358,680.45
  5. Step 5: Solve for x
    x = 10,422,358,680.45/117,817.68
  6. Step 6: Final answer
    x = 88,461.75

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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.