Home / 133,231.77-183,861.90-79,548.21

Finding the Fourth Proportional to 133,231.77, 183,861.90 and 79,548.21

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Solution

The fourth proportional to 133,231.77, 183,861.90 and 79,548.21 is: 109,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,231.77 : 183,861.90 = 79,548.21 : x
  2. Step 2: Convert to fraction form
    133,231.77/183,861.90 = 79,548.21/x
  3. Step 3: Cross multiply
    133,231.77x = 183,861.90 × 79,548.21
  4. Step 4: Simplify right side
    133,231.77x = 14,625,885,032.20
  5. Step 5: Solve for x
    x = 14,625,885,032.20/133,231.77
  6. Step 6: Final answer
    x = 109,777.76

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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.