Home / 113,512.58-156,651.52-70,515.78

Finding the Fourth Proportional to 113,512.58, 156,651.52 and 70,515.78

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Solution

The fourth proportional to 113,512.58, 156,651.52 and 70,515.78 is: 97,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,512.58 : 156,651.52 = 70,515.78 : x
  2. Step 2: Convert to fraction form
    113,512.58/156,651.52 = 70,515.78/x
  3. Step 3: Cross multiply
    113,512.58x = 156,651.52 × 70,515.78
  4. Step 4: Simplify right side
    113,512.58x = 11,046,404,120.99
  5. Step 5: Solve for x
    x = 11,046,404,120.99/113,512.58
  6. Step 6: Final answer
    x = 97,314.36

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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.