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Finding the Fourth Proportional to 156,912, 235,419.84 and 63,366.72

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Solution

The fourth proportional to 156,912, 235,419.84 and 63,366.72 is: 95,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,912 : 235,419.84 = 63,366.72 : x
  2. Step 2: Convert to fraction form
    156,912/235,419.84 = 63,366.72/x
  3. Step 3: Cross multiply
    156,912x = 235,419.84 × 63,366.72
  4. Step 4: Simplify right side
    156,912x = 14,917,783,083.72
  5. Step 5: Solve for x
    x = 14,917,783,083.72/156,912
  6. Step 6: Final answer
    x = 95,071.01

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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.