Home / 112,698.12-155,334.44-89,964.24

Finding the Fourth Proportional to 112,698.12, 155,334.44 and 89,964.24

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Solution

The fourth proportional to 112,698.12, 155,334.44 and 89,964.24 is: 123,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.12 : 155,334.44 = 89,964.24 : x
  2. Step 2: Convert to fraction form
    112,698.12/155,334.44 = 89,964.24/x
  3. Step 3: Cross multiply
    112,698.12x = 155,334.44 × 89,964.24
  4. Step 4: Simplify right side
    112,698.12x = 13,974,544,840.43
  5. Step 5: Solve for x
    x = 13,974,544,840.43/112,698.12
  6. Step 6: Final answer
    x = 123,999.80

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1.5x scale

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.