Home / 155,372.21-232,890.87-75,240.53

Finding the Fourth Proportional to 155,372.21, 232,890.87 and 75,240.53

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Solution

The fourth proportional to 155,372.21, 232,890.87 and 75,240.53 is: 112,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,372.21 : 232,890.87 = 75,240.53 : x
  2. Step 2: Convert to fraction form
    155,372.21/232,890.87 = 75,240.53/x
  3. Step 3: Cross multiply
    155,372.21x = 232,890.87 × 75,240.53
  4. Step 4: Simplify right side
    155,372.21x = 17,522,832,270.39
  5. Step 5: Solve for x
    x = 17,522,832,270.39/155,372.21
  6. Step 6: Final answer
    x = 112,779.71

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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.