Home / 127,166.41-175,507.89-76,181.28

Finding the Fourth Proportional to 127,166.41, 175,507.89 and 76,181.28

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Solution

The fourth proportional to 127,166.41, 175,507.89 and 76,181.28 is: 105,141.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,166.41 : 175,507.89 = 76,181.28 : x
  2. Step 2: Convert to fraction form
    127,166.41/175,507.89 = 76,181.28/x
  3. Step 3: Cross multiply
    127,166.41x = 175,507.89 × 76,181.28
  4. Step 4: Simplify right side
    127,166.41x = 13,370,416,461.57
  5. Step 5: Solve for x
    x = 13,370,416,461.57/127,166.41
  6. Step 6: Final answer
    x = 105,141.11

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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.