Home / 102,090.02-153,142.32-27,209.78

Finding the Fourth Proportional to 102,090.02, 153,142.32 and 27,209.78

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Solution

The fourth proportional to 102,090.02, 153,142.32 and 27,209.78 is: 40,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,090.02 : 153,142.32 = 27,209.78 : x
  2. Step 2: Convert to fraction form
    102,090.02/153,142.32 = 27,209.78/x
  3. Step 3: Cross multiply
    102,090.02x = 153,142.32 × 27,209.78
  4. Step 4: Simplify right side
    102,090.02x = 4,166,968,070.18
  5. Step 5: Solve for x
    x = 4,166,968,070.18/102,090.02
  6. Step 6: Final answer
    x = 40,816.61

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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.