Home / 143,536.55-198,141.80-102,170.47

Finding the Fourth Proportional to 143,536.55, 198,141.80 and 102,170.47

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Solution

The fourth proportional to 143,536.55, 198,141.80 and 102,170.47 is: 141,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,536.55 : 198,141.80 = 102,170.47 : x
  2. Step 2: Convert to fraction form
    143,536.55/198,141.80 = 102,170.47/x
  3. Step 3: Cross multiply
    143,536.55x = 198,141.80 × 102,170.47
  4. Step 4: Simplify right side
    143,536.55x = 20,244,240,197.96
  5. Step 5: Solve for x
    x = 20,244,240,197.96/143,536.55
  6. Step 6: Final answer
    x = 141,038.92

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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.