Home / 165,513.60-248,196.78-47,158.20

Finding the Fourth Proportional to 165,513.60, 248,196.78 and 47,158.20

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Solution

The fourth proportional to 165,513.60, 248,196.78 and 47,158.20 is: 70,716.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,513.60 : 248,196.78 = 47,158.20 : x
  2. Step 2: Convert to fraction form
    165,513.60/248,196.78 = 47,158.20/x
  3. Step 3: Cross multiply
    165,513.60x = 248,196.78 × 47,158.20
  4. Step 4: Simplify right side
    165,513.60x = 11,704,513,390.60
  5. Step 5: Solve for x
    x = 11,704,513,390.60/165,513.60
  6. Step 6: Final answer
    x = 70,716.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.