Home / 113,416.12-156,520.38-63,116.20

Finding the Fourth Proportional to 113,416.12, 156,520.38 and 63,116.20

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Solution

The fourth proportional to 113,416.12, 156,520.38 and 63,116.20 is: 87,103.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,416.12 : 156,520.38 = 63,116.20 : x
  2. Step 2: Convert to fraction form
    113,416.12/156,520.38 = 63,116.20/x
  3. Step 3: Cross multiply
    113,416.12x = 156,520.38 × 63,116.20
  4. Step 4: Simplify right side
    113,416.12x = 9,878,971,608.16
  5. Step 5: Solve for x
    x = 9,878,971,608.16/113,416.12
  6. Step 6: Final answer
    x = 87,103.77

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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.