Home / 208,320.12-312,577.38-124,077.96

Finding the Fourth Proportional to 208,320.12, 312,577.38 and 124,077.96

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Solution

The fourth proportional to 208,320.12, 312,577.38 and 124,077.96 is: 186,174.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,320.12 : 312,577.38 = 124,077.96 : x
  2. Step 2: Convert to fraction form
    208,320.12/312,577.38 = 124,077.96/x
  3. Step 3: Cross multiply
    208,320.12x = 312,577.38 × 124,077.96
  4. Step 4: Simplify right side
    208,320.12x = 38,783,963,652.54
  5. Step 5: Solve for x
    x = 38,783,963,652.54/208,320.12
  6. Step 6: Final answer
    x = 186,174.83

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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.