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Finding the Fourth Proportional to 159,089.52, 219,543.58 and 87,474.39

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Solution

The fourth proportional to 159,089.52, 219,543.58 and 87,474.39 is: 120,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,089.52 : 219,543.58 = 87,474.39 : x
  2. Step 2: Convert to fraction form
    159,089.52/219,543.58 = 87,474.39/x
  3. Step 3: Cross multiply
    159,089.52x = 219,543.58 × 87,474.39
  4. Step 4: Simplify right side
    159,089.52x = 19,204,440,738.92
  5. Step 5: Solve for x
    x = 19,204,440,738.92/159,089.52
  6. Step 6: Final answer
    x = 120,714.68

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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.