Home / 121,679.85-182,529.23-42,811.77

Finding the Fourth Proportional to 121,679.85, 182,529.23 and 42,811.77

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Solution

The fourth proportional to 121,679.85, 182,529.23 and 42,811.77 is: 64,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,679.85 : 182,529.23 = 42,811.77 : x
  2. Step 2: Convert to fraction form
    121,679.85/182,529.23 = 42,811.77/x
  3. Step 3: Cross multiply
    121,679.85x = 182,529.23 × 42,811.77
  4. Step 4: Simplify right side
    121,679.85x = 7,814,399,198.98
  5. Step 5: Solve for x
    x = 7,814,399,198.98/121,679.85
  6. Step 6: Final answer
    x = 64,220.98

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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.