Home / 131,703.75-181,751.63-71,274.38

Finding the Fourth Proportional to 131,703.75, 181,751.63 and 71,274.38

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Solution

The fourth proportional to 131,703.75, 181,751.63 and 71,274.38 is: 98,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.75 : 181,751.63 = 71,274.38 : x
  2. Step 2: Convert to fraction form
    131,703.75/181,751.63 = 71,274.38/x
  3. Step 3: Cross multiply
    131,703.75x = 181,751.63 × 71,274.38
  4. Step 4: Simplify right side
    131,703.75x = 12,954,233,477.11
  5. Step 5: Solve for x
    x = 12,954,233,477.11/131,703.75
  6. Step 6: Final answer
    x = 98,358.88

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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.