Home / 113,709.75-156,900.96-68,376.84

Finding the Fourth Proportional to 113,709.75, 156,900.96 and 68,376.84

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Solution

The fourth proportional to 113,709.75, 156,900.96 and 68,376.84 is: 94,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,709.75 : 156,900.96 = 68,376.84 : x
  2. Step 2: Convert to fraction form
    113,709.75/156,900.96 = 68,376.84/x
  3. Step 3: Cross multiply
    113,709.75x = 156,900.96 × 68,376.84
  4. Step 4: Simplify right side
    113,709.75x = 10,728,391,837.77
  5. Step 5: Solve for x
    x = 10,728,391,837.77/113,709.75
  6. Step 6: Final answer
    x = 94,348.92

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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.