Home / 208,332.66-312,513.57-103,123.38

Finding the Fourth Proportional to 208,332.66, 312,513.57 and 103,123.38

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Solution

The fourth proportional to 208,332.66, 312,513.57 and 103,123.38 is: 154,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,332.66 : 312,513.57 = 103,123.38 : x
  2. Step 2: Convert to fraction form
    208,332.66/312,513.57 = 103,123.38/x
  3. Step 3: Cross multiply
    208,332.66x = 312,513.57 × 103,123.38
  4. Step 4: Simplify right side
    208,332.66x = 32,227,455,634.27
  5. Step 5: Solve for x
    x = 32,227,455,634.27/208,332.66
  6. Step 6: Final answer
    x = 154,692.29

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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.