Home / 115,025.12-172,552.80-40,146.56

Finding the Fourth Proportional to 115,025.12, 172,552.80 and 40,146.56

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Solution

The fourth proportional to 115,025.12, 172,552.80 and 40,146.56 is: 60,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,025.12 : 172,552.80 = 40,146.56 : x
  2. Step 2: Convert to fraction form
    115,025.12/172,552.80 = 40,146.56/x
  3. Step 3: Cross multiply
    115,025.12x = 172,552.80 × 40,146.56
  4. Step 4: Simplify right side
    115,025.12x = 6,927,401,338.37
  5. Step 5: Solve for x
    x = 6,927,401,338.37/115,025.12
  6. Step 6: Final answer
    x = 60,225.12

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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.