Home / 112,363.88-168,441.66-42,289.64

Finding the Fourth Proportional to 112,363.88, 168,441.66 and 42,289.64

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Solution

The fourth proportional to 112,363.88, 168,441.66 and 42,289.64 is: 63,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,363.88 : 168,441.66 = 42,289.64 : x
  2. Step 2: Convert to fraction form
    112,363.88/168,441.66 = 42,289.64/x
  3. Step 3: Cross multiply
    112,363.88x = 168,441.66 × 42,289.64
  4. Step 4: Simplify right side
    112,363.88x = 7,123,337,162.40
  5. Step 5: Solve for x
    x = 7,123,337,162.40/112,363.88
  6. Step 6: Final answer
    x = 63,395.26

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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.