Home / 156,926.20-216,536.94-100,297.40

Finding the Fourth Proportional to 156,926.20, 216,536.94 and 100,297.40

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Solution

The fourth proportional to 156,926.20, 216,536.94 and 100,297.40 is: 138,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,926.20 : 216,536.94 = 100,297.40 : x
  2. Step 2: Convert to fraction form
    156,926.20/216,536.94 = 100,297.40/x
  3. Step 3: Cross multiply
    156,926.20x = 216,536.94 × 100,297.40
  4. Step 4: Simplify right side
    156,926.20x = 21,718,092,085.96
  5. Step 5: Solve for x
    x = 21,718,092,085.96/156,926.20
  6. Step 6: Final answer
    x = 138,396.85

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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.