Home / 76,146.18-114,153.66-29,431.86

Finding the Fourth Proportional to 76,146.18, 114,153.66 and 29,431.86

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Solution

The fourth proportional to 76,146.18, 114,153.66 and 29,431.86 is: 44,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.18 : 114,153.66 = 29,431.86 : x
  2. Step 2: Convert to fraction form
    76,146.18/114,153.66 = 29,431.86/x
  3. Step 3: Cross multiply
    76,146.18x = 114,153.66 × 29,431.86
  4. Step 4: Simplify right side
    76,146.18x = 3,359,754,539.61
  5. Step 5: Solve for x
    x = 3,359,754,539.61/76,146.18
  6. Step 6: Final answer
    x = 44,122.43

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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.