Home / 131,911.84-182,047.20-74,531.28

Finding the Fourth Proportional to 131,911.84, 182,047.20 and 74,531.28

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Solution

The fourth proportional to 131,911.84, 182,047.20 and 74,531.28 is: 102,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,911.84 : 182,047.20 = 74,531.28 : x
  2. Step 2: Convert to fraction form
    131,911.84/182,047.20 = 74,531.28/x
  3. Step 3: Cross multiply
    131,911.84x = 182,047.20 × 74,531.28
  4. Step 4: Simplify right side
    131,911.84x = 13,568,210,836.42
  5. Step 5: Solve for x
    x = 13,568,210,836.42/131,911.84
  6. Step 6: Final answer
    x = 102,858.17

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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.