Home / 115,202.04-172,821.24-40,320.36

Finding the Fourth Proportional to 115,202.04, 172,821.24 and 40,320.36

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Solution

The fourth proportional to 115,202.04, 172,821.24 and 40,320.36 is: 60,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,202.04 : 172,821.24 = 40,320.36 : x
  2. Step 2: Convert to fraction form
    115,202.04/172,821.24 = 40,320.36/x
  3. Step 3: Cross multiply
    115,202.04x = 172,821.24 × 40,320.36
  4. Step 4: Simplify right side
    115,202.04x = 6,968,214,612.45
  5. Step 5: Solve for x
    x = 6,968,214,612.45/115,202.04
  6. Step 6: Final answer
    x = 60,486.90

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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.