Home / 93,778.32-140,514.12-90,279.12

Finding the Fourth Proportional to 93,778.32, 140,514.12 and 90,279.12

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Solution

The fourth proportional to 93,778.32, 140,514.12 and 90,279.12 is: 135,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,778.32 : 140,514.12 = 90,279.12 : x
  2. Step 2: Convert to fraction form
    93,778.32/140,514.12 = 90,279.12/x
  3. Step 3: Cross multiply
    93,778.32x = 140,514.12 × 90,279.12
  4. Step 4: Simplify right side
    93,778.32x = 12,685,491,101.17
  5. Step 5: Solve for x
    x = 12,685,491,101.17/93,778.32
  6. Step 6: Final answer
    x = 135,271.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.