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Finding the Fourth Proportional to 156,855.67, 216,443.25 and 88,858.08

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Solution

The fourth proportional to 156,855.67, 216,443.25 and 88,858.08 is: 122,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,855.67 : 216,443.25 = 88,858.08 : x
  2. Step 2: Convert to fraction form
    156,855.67/216,443.25 = 88,858.08/x
  3. Step 3: Cross multiply
    156,855.67x = 216,443.25 × 88,858.08
  4. Step 4: Simplify right side
    156,855.67x = 19,232,731,623.96
  5. Step 5: Solve for x
    x = 19,232,731,623.96/156,855.67
  6. Step 6: Final answer
    x = 122,614.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.