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Finding the Fourth Proportional to 159,159.37, 219,636.60 and 87,538.22

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Solution

The fourth proportional to 159,159.37, 219,636.60 and 87,538.22 is: 120,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,159.37 : 219,636.60 = 87,538.22 : x
  2. Step 2: Convert to fraction form
    159,159.37/219,636.60 = 87,538.22/x
  3. Step 3: Cross multiply
    159,159.37x = 219,636.60 × 87,538.22
  4. Step 4: Simplify right side
    159,159.37x = 19,226,597,010.85
  5. Step 5: Solve for x
    x = 19,226,597,010.85/159,159.37
  6. Step 6: Final answer
    x = 120,800.92

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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.