Home / 112,509.12-168,763.84-45,949.25

Finding the Fourth Proportional to 112,509.12, 168,763.84 and 45,949.25

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Solution

The fourth proportional to 112,509.12, 168,763.84 and 45,949.25 is: 68,923.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,509.12 : 168,763.84 = 45,949.25 : x
  2. Step 2: Convert to fraction form
    112,509.12/168,763.84 = 45,949.25/x
  3. Step 3: Cross multiply
    112,509.12x = 168,763.84 × 45,949.25
  4. Step 4: Simplify right side
    112,509.12x = 7,754,571,875.12
  5. Step 5: Solve for x
    x = 7,754,571,875.12/112,509.12
  6. Step 6: Final answer
    x = 68,923.94

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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.