Home / 208,327.32-312,505.70-103,118.04

Finding the Fourth Proportional to 208,327.32, 312,505.70 and 103,118.04

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Solution

The fourth proportional to 208,327.32, 312,505.70 and 103,118.04 is: 154,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,327.32 : 312,505.70 = 103,118.04 : x
  2. Step 2: Convert to fraction form
    208,327.32/312,505.70 = 103,118.04/x
  3. Step 3: Cross multiply
    208,327.32x = 312,505.70 × 103,118.04
  4. Step 4: Simplify right side
    208,327.32x = 32,224,974,757.24
  5. Step 5: Solve for x
    x = 32,224,974,757.24/208,327.32
  6. Step 6: Final answer
    x = 154,684.34

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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.