Home / 117,715.08-162,445.60-87,634.92

Finding the Fourth Proportional to 117,715.08, 162,445.60 and 87,634.92

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Solution

The fourth proportional to 117,715.08, 162,445.60 and 87,634.92 is: 120,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,715.08 : 162,445.60 = 87,634.92 : x
  2. Step 2: Convert to fraction form
    117,715.08/162,445.60 = 87,634.92/x
  3. Step 3: Cross multiply
    117,715.08x = 162,445.60 × 87,634.92
  4. Step 4: Simplify right side
    117,715.08x = 14,235,907,160.35
  5. Step 5: Solve for x
    x = 14,235,907,160.35/117,715.08
  6. Step 6: Final answer
    x = 120,935.29

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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.