Home / 172,116.06-258,275.14-72,268.58

Finding the Fourth Proportional to 172,116.06, 258,275.14 and 72,268.58

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Solution

The fourth proportional to 172,116.06, 258,275.14 and 72,268.58 is: 108,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,116.06 : 258,275.14 = 72,268.58 : x
  2. Step 2: Convert to fraction form
    172,116.06/258,275.14 = 72,268.58/x
  3. Step 3: Cross multiply
    172,116.06x = 258,275.14 × 72,268.58
  4. Step 4: Simplify right side
    172,116.06x = 18,665,176,145.05
  5. Step 5: Solve for x
    x = 18,665,176,145.05/172,116.06
  6. Step 6: Final answer
    x = 108,445.29

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1.5x scale

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.