Home / 126,983.90-175,238.03-70,395.28

Finding the Fourth Proportional to 126,983.90, 175,238.03 and 70,395.28

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Solution

The fourth proportional to 126,983.90, 175,238.03 and 70,395.28 is: 97,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,983.90 : 175,238.03 = 70,395.28 : x
  2. Step 2: Convert to fraction form
    126,983.90/175,238.03 = 70,395.28/x
  3. Step 3: Cross multiply
    126,983.90x = 175,238.03 × 70,395.28
  4. Step 4: Simplify right side
    126,983.90x = 12,335,929,926.39
  5. Step 5: Solve for x
    x = 12,335,929,926.39/126,983.90
  6. Step 6: Final answer
    x = 97,145.62

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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.