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Finding the Fourth Proportional to 76,158.48, 114,234.48 and 20,754.48

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Solution

The fourth proportional to 76,158.48, 114,234.48 and 20,754.48 is: 31,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,158.48 : 114,234.48 = 20,754.48 : x
  2. Step 2: Convert to fraction form
    76,158.48/114,234.48 = 20,754.48/x
  3. Step 3: Cross multiply
    76,158.48x = 114,234.48 × 20,754.48
  4. Step 4: Simplify right side
    76,158.48x = 2,370,877,230.47
  5. Step 5: Solve for x
    x = 2,370,877,230.47/76,158.48
  6. Step 6: Final answer
    x = 31,130.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.