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Finding the Fourth Proportional to 181,611.64, 272,621.58 and 76,519

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Solution

The fourth proportional to 181,611.64, 272,621.58 and 76,519 is: 114,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,611.64 : 272,621.58 = 76,519 : x
  2. Step 2: Convert to fraction form
    181,611.64/272,621.58 = 76,519/x
  3. Step 3: Cross multiply
    181,611.64x = 272,621.58 × 76,519
  4. Step 4: Simplify right side
    181,611.64x = 20,860,730,680.02
  5. Step 5: Solve for x
    x = 20,860,730,680.02/181,611.64
  6. Step 6: Final answer
    x = 114,864.50

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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.