Home / 143,848.89-198,509.61-80,186.52

Finding the Fourth Proportional to 143,848.89, 198,509.61 and 80,186.52

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Solution

The fourth proportional to 143,848.89, 198,509.61 and 80,186.52 is: 110,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,848.89 : 198,509.61 = 80,186.52 : x
  2. Step 2: Convert to fraction form
    143,848.89/198,509.61 = 80,186.52/x
  3. Step 3: Cross multiply
    143,848.89x = 198,509.61 × 80,186.52
  4. Step 4: Simplify right side
    143,848.89x = 15,917,794,812.46
  5. Step 5: Solve for x
    x = 15,917,794,812.46/143,848.89
  6. Step 6: Final answer
    x = 110,656.36

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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.