Home / 113,742.58-156,968.13-63,440.50

Finding the Fourth Proportional to 113,742.58, 156,968.13 and 63,440.50

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Solution

The fourth proportional to 113,742.58, 156,968.13 and 63,440.50 is: 87,549.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,742.58 : 156,968.13 = 63,440.50 : x
  2. Step 2: Convert to fraction form
    113,742.58/156,968.13 = 63,440.50/x
  3. Step 3: Cross multiply
    113,742.58x = 156,968.13 × 63,440.50
  4. Step 4: Simplify right side
    113,742.58x = 9,958,136,651.27
  5. Step 5: Solve for x
    x = 9,958,136,651.27/113,742.58
  6. Step 6: Final answer
    x = 87,549.77

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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.