Home / 117,929.68-162,739.20-70,172.08

Finding the Fourth Proportional to 117,929.68, 162,739.20 and 70,172.08

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Solution

The fourth proportional to 117,929.68, 162,739.20 and 70,172.08 is: 96,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.68 : 162,739.20 = 70,172.08 : x
  2. Step 2: Convert to fraction form
    117,929.68/162,739.20 = 70,172.08/x
  3. Step 3: Cross multiply
    117,929.68x = 162,739.20 × 70,172.08
  4. Step 4: Simplify right side
    117,929.68x = 11,419,748,161.54
  5. Step 5: Solve for x
    x = 11,419,748,161.54/117,929.68
  6. Step 6: Final answer
    x = 96,835.23

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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.