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Finding the Fourth Proportional to 159,099.48, 219,562.92 and 87,484.98

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Solution

The fourth proportional to 159,099.48, 219,562.92 and 87,484.98 is: 120,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,099.48 : 219,562.92 = 87,484.98 : x
  2. Step 2: Convert to fraction form
    159,099.48/219,562.92 = 87,484.98/x
  3. Step 3: Cross multiply
    159,099.48x = 219,562.92 × 87,484.98
  4. Step 4: Simplify right side
    159,099.48x = 19,208,457,664.94
  5. Step 5: Solve for x
    x = 19,208,457,664.94/159,099.48
  6. Step 6: Final answer
    x = 120,732.37

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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.