Home / 234,153.12-323,136.24-138,624.96

Finding the Fourth Proportional to 234,153.12, 323,136.24 and 138,624.96

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Solution

The fourth proportional to 234,153.12, 323,136.24 and 138,624.96 is: 191,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,153.12 : 323,136.24 = 138,624.96 : x
  2. Step 2: Convert to fraction form
    234,153.12/323,136.24 = 138,624.96/x
  3. Step 3: Cross multiply
    234,153.12x = 323,136.24 × 138,624.96
  4. Step 4: Simplify right side
    234,153.12x = 44,794,748,344.55
  5. Step 5: Solve for x
    x = 44,794,748,344.55/234,153.12
  6. Step 6: Final answer
    x = 191,305.37

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1.5x scale

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.