Home / 156,736.87-235,145.06-72,557.75

Finding the Fourth Proportional to 156,736.87, 235,145.06 and 72,557.75

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Solution

The fourth proportional to 156,736.87, 235,145.06 and 72,557.75 is: 108,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,736.87 : 235,145.06 = 72,557.75 : x
  2. Step 2: Convert to fraction form
    156,736.87/235,145.06 = 72,557.75/x
  3. Step 3: Cross multiply
    156,736.87x = 235,145.06 × 72,557.75
  4. Step 4: Simplify right side
    156,736.87x = 17,061,596,477.22
  5. Step 5: Solve for x
    x = 17,061,596,477.22/156,736.87
  6. Step 6: Final answer
    x = 108,855.03

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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.