Home / 100,244.94-138,285.46-61,992.28

Finding the Fourth Proportional to 100,244.94, 138,285.46 and 61,992.28

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Solution

The fourth proportional to 100,244.94, 138,285.46 and 61,992.28 is: 85,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.94 : 138,285.46 = 61,992.28 : x
  2. Step 2: Convert to fraction form
    100,244.94/138,285.46 = 61,992.28/x
  3. Step 3: Cross multiply
    100,244.94x = 138,285.46 × 61,992.28
  4. Step 4: Simplify right side
    100,244.94x = 8,572,630,956.25
  5. Step 5: Solve for x
    x = 8,572,630,956.25/100,244.94
  6. Step 6: Final answer
    x = 85,516.84

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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.