Home / 112,478.24-155,213.88-62,174

Finding the Fourth Proportional to 112,478.24, 155,213.88 and 62,174

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Solution

The fourth proportional to 112,478.24, 155,213.88 and 62,174 is: 85,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,478.24 : 155,213.88 = 62,174 : x
  2. Step 2: Convert to fraction form
    112,478.24/155,213.88 = 62,174/x
  3. Step 3: Cross multiply
    112,478.24x = 155,213.88 × 62,174
  4. Step 4: Simplify right side
    112,478.24x = 9,650,267,775.12
  5. Step 5: Solve for x
    x = 9,650,267,775.12/112,478.24
  6. Step 6: Final answer
    x = 85,796.75

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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.