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Finding the Fourth Proportional to 156,334.32, 234,384.84 and 73,208.88

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Solution

The fourth proportional to 156,334.32, 234,384.84 and 73,208.88 is: 109,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,334.32 : 234,384.84 = 73,208.88 : x
  2. Step 2: Convert to fraction form
    156,334.32/234,384.84 = 73,208.88/x
  3. Step 3: Cross multiply
    156,334.32x = 234,384.84 × 73,208.88
  4. Step 4: Simplify right side
    156,334.32x = 17,159,051,625.38
  5. Step 5: Solve for x
    x = 17,159,051,625.38/156,334.32
  6. Step 6: Final answer
    x = 109,758.70

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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.