Home / 124,752.02-172,234.06-81,186.08

Finding the Fourth Proportional to 124,752.02, 172,234.06 and 81,186.08

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Solution

The fourth proportional to 124,752.02, 172,234.06 and 81,186.08 is: 112,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.02 : 172,234.06 = 81,186.08 : x
  2. Step 2: Convert to fraction form
    124,752.02/172,234.06 = 81,186.08/x
  3. Step 3: Cross multiply
    124,752.02x = 172,234.06 × 81,186.08
  4. Step 4: Simplify right side
    124,752.02x = 13,983,008,173.88
  5. Step 5: Solve for x
    x = 13,983,008,173.88/124,752.02
  6. Step 6: Final answer
    x = 112,086.43

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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.