Home / 131,493.15-181,460.12-74,914.11

Finding the Fourth Proportional to 131,493.15, 181,460.12 and 74,914.11

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Solution

The fourth proportional to 131,493.15, 181,460.12 and 74,914.11 is: 103,381.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,493.15 : 181,460.12 = 74,914.11 : x
  2. Step 2: Convert to fraction form
    131,493.15/181,460.12 = 74,914.11/x
  3. Step 3: Cross multiply
    131,493.15x = 181,460.12 × 74,914.11
  4. Step 4: Simplify right side
    131,493.15x = 13,593,923,015.72
  5. Step 5: Solve for x
    x = 13,593,923,015.72/131,493.15
  6. Step 6: Final answer
    x = 103,381.23

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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.