Home / 219,916.23-303,513.02-123,156.98

Finding the Fourth Proportional to 219,916.23, 303,513.02 and 123,156.98

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Solution

The fourth proportional to 219,916.23, 303,513.02 and 123,156.98 is: 169,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,916.23 : 303,513.02 = 123,156.98 : x
  2. Step 2: Convert to fraction form
    219,916.23/303,513.02 = 123,156.98/x
  3. Step 3: Cross multiply
    219,916.23x = 303,513.02 × 123,156.98
  4. Step 4: Simplify right side
    219,916.23x = 37,379,744,800.53
  5. Step 5: Solve for x
    x = 37,379,744,800.53/219,916.23
  6. Step 6: Final answer
    x = 169,972.65

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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.