Home / 143,695.35-198,301.68-83,270.34

Finding the Fourth Proportional to 143,695.35, 198,301.68 and 83,270.34

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Solution

The fourth proportional to 143,695.35, 198,301.68 and 83,270.34 is: 114,914.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,695.35 : 198,301.68 = 83,270.34 : x
  2. Step 2: Convert to fraction form
    143,695.35/198,301.68 = 83,270.34/x
  3. Step 3: Cross multiply
    143,695.35x = 198,301.68 × 83,270.34
  4. Step 4: Simplify right side
    143,695.35x = 16,512,648,316.17
  5. Step 5: Solve for x
    x = 16,512,648,316.17/143,695.35
  6. Step 6: Final answer
    x = 114,914.28

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1.5x scale

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.