Home / 172,687.32-258,598.44-109,316.16

Finding the Fourth Proportional to 172,687.32, 258,598.44 and 109,316.16

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Solution

The fourth proportional to 172,687.32, 258,598.44 and 109,316.16 is: 163,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,687.32 : 258,598.44 = 109,316.16 : x
  2. Step 2: Convert to fraction form
    172,687.32/258,598.44 = 109,316.16/x
  3. Step 3: Cross multiply
    172,687.32x = 258,598.44 × 109,316.16
  4. Step 4: Simplify right side
    172,687.32x = 28,268,988,442.79
  5. Step 5: Solve for x
    x = 28,268,988,442.79/172,687.32
  6. Step 6: Final answer
    x = 163,700.43

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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.