Home / 143,736.04-196,919.08-138,348.93

Finding the Fourth Proportional to 143,736.04, 196,919.08 and 138,348.93

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Solution

The fourth proportional to 143,736.04, 196,919.08 and 138,348.93 is: 189,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,736.04 : 196,919.08 = 138,348.93 : x
  2. Step 2: Convert to fraction form
    143,736.04/196,919.08 = 138,348.93/x
  3. Step 3: Cross multiply
    143,736.04x = 196,919.08 × 138,348.93
  4. Step 4: Simplify right side
    143,736.04x = 27,243,544,014.58
  5. Step 5: Solve for x
    x = 27,243,544,014.58/143,736.04
  6. Step 6: Final answer
    x = 189,538.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.