Home / 165,424.68-228,322.80-100,908.18

Finding the Fourth Proportional to 165,424.68, 228,322.80 and 100,908.18

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Solution

The fourth proportional to 165,424.68, 228,322.80 and 100,908.18 is: 139,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,424.68 : 228,322.80 = 100,908.18 : x
  2. Step 2: Convert to fraction form
    165,424.68/228,322.80 = 100,908.18/x
  3. Step 3: Cross multiply
    165,424.68x = 228,322.80 × 100,908.18
  4. Step 4: Simplify right side
    165,424.68x = 23,039,638,200.50
  5. Step 5: Solve for x
    x = 23,039,638,200.50/165,424.68
  6. Step 6: Final answer
    x = 139,275.70

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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.