Home / 127,236.08-175,506.36-81,974

Finding the Fourth Proportional to 127,236.08, 175,506.36 and 81,974

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Solution

The fourth proportional to 127,236.08, 175,506.36 and 81,974 is: 113,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,236.08 : 175,506.36 = 81,974 : x
  2. Step 2: Convert to fraction form
    127,236.08/175,506.36 = 81,974/x
  3. Step 3: Cross multiply
    127,236.08x = 175,506.36 × 81,974
  4. Step 4: Simplify right side
    127,236.08x = 14,386,958,354.64
  5. Step 5: Solve for x
    x = 14,386,958,354.64/127,236.08
  6. Step 6: Final answer
    x = 113,072.95

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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.