Home / 117,930.98-162,746.70-64,217.05

Finding the Fourth Proportional to 117,930.98, 162,746.70 and 64,217.05

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Solution

The fourth proportional to 117,930.98, 162,746.70 and 64,217.05 is: 88,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,930.98 : 162,746.70 = 64,217.05 : x
  2. Step 2: Convert to fraction form
    117,930.98/162,746.70 = 64,217.05/x
  3. Step 3: Cross multiply
    117,930.98x = 162,746.70 × 64,217.05
  4. Step 4: Simplify right side
    117,930.98x = 10,451,112,157.50
  5. Step 5: Solve for x
    x = 10,451,112,157.50/117,930.98
  6. Step 6: Final answer
    x = 88,620.58

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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.