Home / 113,421.06-156,519.54-63,120.06

Finding the Fourth Proportional to 113,421.06, 156,519.54 and 63,120.06

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Solution

The fourth proportional to 113,421.06, 156,519.54 and 63,120.06 is: 87,104.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,421.06 : 156,519.54 = 63,120.06 : x
  2. Step 2: Convert to fraction form
    113,421.06/156,519.54 = 63,120.06/x
  3. Step 3: Cross multiply
    113,421.06x = 156,519.54 × 63,120.06
  4. Step 4: Simplify right side
    113,421.06x = 9,879,522,755.97
  5. Step 5: Solve for x
    x = 9,879,522,755.97/113,421.06
  6. Step 6: Final answer
    x = 87,104.84

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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.