Home / 131,778.51-181,850.97-73,635.72

Finding the Fourth Proportional to 131,778.51, 181,850.97 and 73,635.72

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Solution

The fourth proportional to 131,778.51, 181,850.97 and 73,635.72 is: 101,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,778.51 : 181,850.97 = 73,635.72 : x
  2. Step 2: Convert to fraction form
    131,778.51/181,850.97 = 73,635.72/x
  3. Step 3: Cross multiply
    131,778.51x = 181,850.97 × 73,635.72
  4. Step 4: Simplify right side
    131,778.51x = 13,390,727,108.65
  5. Step 5: Solve for x
    x = 13,390,727,108.65/131,778.51
  6. Step 6: Final answer
    x = 101,615.41

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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.