Home / 159,006.48-219,429.10-87,384.96

Finding the Fourth Proportional to 159,006.48, 219,429.10 and 87,384.96

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Solution

The fourth proportional to 159,006.48, 219,429.10 and 87,384.96 is: 120,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,006.48 : 219,429.10 = 87,384.96 : x
  2. Step 2: Convert to fraction form
    159,006.48/219,429.10 = 87,384.96/x
  3. Step 3: Cross multiply
    159,006.48x = 219,429.10 × 87,384.96
  4. Step 4: Simplify right side
    159,006.48x = 19,174,803,126.34
  5. Step 5: Solve for x
    x = 19,174,803,126.34/159,006.48
  6. Step 6: Final answer
    x = 120,591.33

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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.