Home / 162,384.31-243,631.61-87,511.96

Finding the Fourth Proportional to 162,384.31, 243,631.61 and 87,511.96

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Solution

The fourth proportional to 162,384.31, 243,631.61 and 87,511.96 is: 131,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,384.31 : 243,631.61 = 87,511.96 : x
  2. Step 2: Convert to fraction form
    162,384.31/243,631.61 = 87,511.96/x
  3. Step 3: Cross multiply
    162,384.31x = 243,631.61 × 87,511.96
  4. Step 4: Simplify right side
    162,384.31x = 21,320,679,709.06
  5. Step 5: Solve for x
    x = 21,320,679,709.06/162,384.31
  6. Step 6: Final answer
    x = 131,297.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.