Home / 113,520.22-156,733.40-70,563.90

Finding the Fourth Proportional to 113,520.22, 156,733.40 and 70,563.90

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Solution

The fourth proportional to 113,520.22, 156,733.40 and 70,563.90 is: 97,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,520.22 : 156,733.40 = 70,563.90 : x
  2. Step 2: Convert to fraction form
    113,520.22/156,733.40 = 70,563.90/x
  3. Step 3: Cross multiply
    113,520.22x = 156,733.40 × 70,563.90
  4. Step 4: Simplify right side
    113,520.22x = 11,059,719,964.26
  5. Step 5: Solve for x
    x = 11,059,719,964.26/113,520.22
  6. Step 6: Final answer
    x = 97,425.11

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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.