Home / 124,753.02-172,235.44-81,187.08

Finding the Fourth Proportional to 124,753.02, 172,235.44 and 81,187.08

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Solution

The fourth proportional to 124,753.02, 172,235.44 and 81,187.08 is: 112,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,753.02 : 172,235.44 = 81,187.08 : x
  2. Step 2: Convert to fraction form
    124,753.02/172,235.44 = 81,187.08/x
  3. Step 3: Cross multiply
    124,753.02x = 172,235.44 × 81,187.08
  4. Step 4: Simplify right side
    124,753.02x = 13,983,292,446.12
  5. Step 5: Solve for x
    x = 13,983,292,446.12/124,753.02
  6. Step 6: Final answer
    x = 112,087.81

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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.