Home / 115,275.22-172,927.96-45,145.42

Finding the Fourth Proportional to 115,275.22, 172,927.96 and 45,145.42

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Solution

The fourth proportional to 115,275.22, 172,927.96 and 45,145.42 is: 67,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.22 : 172,927.96 = 45,145.42 : x
  2. Step 2: Convert to fraction form
    115,275.22/172,927.96 = 45,145.42/x
  3. Step 3: Cross multiply
    115,275.22x = 172,927.96 × 45,145.42
  4. Step 4: Simplify right side
    115,275.22x = 7,806,905,383.94
  5. Step 5: Solve for x
    x = 7,806,905,383.94/115,275.22
  6. Step 6: Final answer
    x = 67,724.06

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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.