Home / 156,538.88-234,595.84-72,113.28

Finding the Fourth Proportional to 156,538.88, 234,595.84 and 72,113.28

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Solution

The fourth proportional to 156,538.88, 234,595.84 and 72,113.28 is: 108,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,538.88 : 234,595.84 = 72,113.28 : x
  2. Step 2: Convert to fraction form
    156,538.88/234,595.84 = 72,113.28/x
  3. Step 3: Cross multiply
    156,538.88x = 234,595.84 × 72,113.28
  4. Step 4: Simplify right side
    156,538.88x = 16,917,475,496.76
  5. Step 5: Solve for x
    x = 16,917,475,496.76/156,538.88
  6. Step 6: Final answer
    x = 108,072.04

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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.