Home / 113,416.62-156,515.94-63,115.62

Finding the Fourth Proportional to 113,416.62, 156,515.94 and 63,115.62

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Solution

The fourth proportional to 113,416.62, 156,515.94 and 63,115.62 is: 87,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,416.62 : 156,515.94 = 63,115.62 : x
  2. Step 2: Convert to fraction form
    113,416.62/156,515.94 = 63,115.62/x
  3. Step 3: Cross multiply
    113,416.62x = 156,515.94 × 63,115.62
  4. Step 4: Simplify right side
    113,416.62x = 9,878,600,592.98
  5. Step 5: Solve for x
    x = 9,878,600,592.98/113,416.62
  6. Step 6: Final answer
    x = 87,100.11

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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.