Home / 115,116.96-172,682.40-48,490.56

Finding the Fourth Proportional to 115,116.96, 172,682.40 and 48,490.56

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Solution

The fourth proportional to 115,116.96, 172,682.40 and 48,490.56 is: 72,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,116.96 : 172,682.40 = 48,490.56 : x
  2. Step 2: Convert to fraction form
    115,116.96/172,682.40 = 48,490.56/x
  3. Step 3: Cross multiply
    115,116.96x = 172,682.40 × 48,490.56
  4. Step 4: Simplify right side
    115,116.96x = 8,373,466,278.14
  5. Step 5: Solve for x
    x = 8,373,466,278.14/115,116.96
  6. Step 6: Final answer
    x = 72,738.77

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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.