Home / 102,068.10-140,922.72-91,279.44

Finding the Fourth Proportional to 102,068.10, 140,922.72 and 91,279.44

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Solution

The fourth proportional to 102,068.10, 140,922.72 and 91,279.44 is: 126,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,068.10 : 140,922.72 = 91,279.44 : x
  2. Step 2: Convert to fraction form
    102,068.10/140,922.72 = 91,279.44/x
  3. Step 3: Cross multiply
    102,068.10x = 140,922.72 × 91,279.44
  4. Step 4: Simplify right side
    102,068.10x = 12,863,346,964.88
  5. Step 5: Solve for x
    x = 12,863,346,964.88/102,068.10
  6. Step 6: Final answer
    x = 126,027.10

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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.