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Finding the Fourth Proportional to 127,297.71, 175,676.40 and 70,709.09

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Solution

The fourth proportional to 127,297.71, 175,676.40 and 70,709.09 is: 97,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,297.71 : 175,676.40 = 70,709.09 : x
  2. Step 2: Convert to fraction form
    127,297.71/175,676.40 = 70,709.09/x
  3. Step 3: Cross multiply
    127,297.71x = 175,676.40 × 70,709.09
  4. Step 4: Simplify right side
    127,297.71x = 12,421,918,378.48
  5. Step 5: Solve for x
    x = 12,421,918,378.48/127,297.71
  6. Step 6: Final answer
    x = 97,581.63

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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.