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Finding the Fourth Proportional to 156,656.51, 235,035.29 and 72,471.82

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Solution

The fourth proportional to 156,656.51, 235,035.29 and 72,471.82 is: 108,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,656.51 : 235,035.29 = 72,471.82 : x
  2. Step 2: Convert to fraction form
    156,656.51/235,035.29 = 72,471.82/x
  3. Step 3: Cross multiply
    156,656.51x = 235,035.29 × 72,471.82
  4. Step 4: Simplify right side
    156,656.51x = 17,033,433,692.99
  5. Step 5: Solve for x
    x = 17,033,433,692.99/156,656.51
  6. Step 6: Final answer
    x = 108,731.09

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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.