Home / 143,849.04-198,526.48-86,507.12

Finding the Fourth Proportional to 143,849.04, 198,526.48 and 86,507.12

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Solution

The fourth proportional to 143,849.04, 198,526.48 and 86,507.12 is: 119,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,849.04 : 198,526.48 = 86,507.12 : x
  2. Step 2: Convert to fraction form
    143,849.04/198,526.48 = 86,507.12/x
  3. Step 3: Cross multiply
    143,849.04x = 198,526.48 × 86,507.12
  4. Step 4: Simplify right side
    143,849.04x = 17,173,954,028.54
  5. Step 5: Solve for x
    x = 17,173,954,028.54/143,849.04
  6. Step 6: Final answer
    x = 119,388.73

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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.