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Finding the Fourth Proportional to 129,662.72, 194,416.32 and 59,454.08

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Solution

The fourth proportional to 129,662.72, 194,416.32 and 59,454.08 is: 89,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,662.72 : 194,416.32 = 59,454.08 : x
  2. Step 2: Convert to fraction form
    129,662.72/194,416.32 = 59,454.08/x
  3. Step 3: Cross multiply
    129,662.72x = 194,416.32 × 59,454.08
  4. Step 4: Simplify right side
    129,662.72x = 11,558,843,442.59
  5. Step 5: Solve for x
    x = 11,558,843,442.59/129,662.72
  6. Step 6: Final answer
    x = 89,145.46

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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.