Home / 124,777.32-172,199.70-82,305.78

Finding the Fourth Proportional to 124,777.32, 172,199.70 and 82,305.78

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Solution

The fourth proportional to 124,777.32, 172,199.70 and 82,305.78 is: 113,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,777.32 : 172,199.70 = 82,305.78 : x
  2. Step 2: Convert to fraction form
    124,777.32/172,199.70 = 82,305.78/x
  3. Step 3: Cross multiply
    124,777.32x = 172,199.70 × 82,305.78
  4. Step 4: Simplify right side
    124,777.32x = 14,173,030,624.27
  5. Step 5: Solve for x
    x = 14,173,030,624.27/124,777.32
  6. Step 6: Final answer
    x = 113,586.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.