Home / 143,735.04-196,917.71-138,347.93

Finding the Fourth Proportional to 143,735.04, 196,917.71 and 138,347.93

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Solution

The fourth proportional to 143,735.04, 196,917.71 and 138,347.93 is: 189,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,735.04 : 196,917.71 = 138,347.93 : x
  2. Step 2: Convert to fraction form
    143,735.04/196,917.71 = 138,347.93/x
  3. Step 3: Cross multiply
    143,735.04x = 196,917.71 × 138,347.93
  4. Step 4: Simplify right side
    143,735.04x = 27,243,157,066.55
  5. Step 5: Solve for x
    x = 27,243,157,066.55/143,735.04
  6. Step 6: Final answer
    x = 189,537.35

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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.