Home / 115,281.78-172,940.55-48,722.19

Finding the Fourth Proportional to 115,281.78, 172,940.55 and 48,722.19

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Solution

The fourth proportional to 115,281.78, 172,940.55 and 48,722.19 is: 73,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,281.78 : 172,940.55 = 48,722.19 : x
  2. Step 2: Convert to fraction form
    115,281.78/172,940.55 = 48,722.19/x
  3. Step 3: Cross multiply
    115,281.78x = 172,940.55 × 48,722.19
  4. Step 4: Simplify right side
    115,281.78x = 8,426,042,335.80
  5. Step 5: Solve for x
    x = 8,426,042,335.80/115,281.78
  6. Step 6: Final answer
    x = 73,090.84

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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.