Home / 122,790.87-169,461.18-69,072.66

Finding the Fourth Proportional to 122,790.87, 169,461.18 and 69,072.66

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Solution

The fourth proportional to 122,790.87, 169,461.18 and 69,072.66 is: 95,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,790.87 : 169,461.18 = 69,072.66 : x
  2. Step 2: Convert to fraction form
    122,790.87/169,461.18 = 69,072.66/x
  3. Step 3: Cross multiply
    122,790.87x = 169,461.18 × 69,072.66
  4. Step 4: Simplify right side
    122,790.87x = 11,705,134,469.34
  5. Step 5: Solve for x
    x = 11,705,134,469.34/122,790.87
  6. Step 6: Final answer
    x = 95,325.77

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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.