Home / 143,638.56-198,035.91-117,700.65

Finding the Fourth Proportional to 143,638.56, 198,035.91 and 117,700.65

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Solution

The fourth proportional to 143,638.56, 198,035.91 and 117,700.65 is: 162,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,638.56 : 198,035.91 = 117,700.65 : x
  2. Step 2: Convert to fraction form
    143,638.56/198,035.91 = 117,700.65/x
  3. Step 3: Cross multiply
    143,638.56x = 198,035.91 × 117,700.65
  4. Step 4: Simplify right side
    143,638.56x = 23,308,955,330.34
  5. Step 5: Solve for x
    x = 23,308,955,330.34/143,638.56
  6. Step 6: Final answer
    x = 162,275.06

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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.