Home / 112,649.20-155,452.81-64,250.04

Finding the Fourth Proportional to 112,649.20, 155,452.81 and 64,250.04

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Solution

The fourth proportional to 112,649.20, 155,452.81 and 64,250.04 is: 88,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,649.20 : 155,452.81 = 64,250.04 : x
  2. Step 2: Convert to fraction form
    112,649.20/155,452.81 = 64,250.04/x
  3. Step 3: Cross multiply
    112,649.20x = 155,452.81 × 64,250.04
  4. Step 4: Simplify right side
    112,649.20x = 9,987,848,808.00
  5. Step 5: Solve for x
    x = 9,987,848,808.00/112,649.20
  6. Step 6: Final answer
    x = 88,663.29

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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.