Home / 122,461.80-183,521.61-66,180.57

Finding the Fourth Proportional to 122,461.80, 183,521.61 and 66,180.57

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Solution

The fourth proportional to 122,461.80, 183,521.61 and 66,180.57 is: 99,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,461.80 : 183,521.61 = 66,180.57 : x
  2. Step 2: Convert to fraction form
    122,461.80/183,521.61 = 66,180.57/x
  3. Step 3: Cross multiply
    122,461.80x = 183,521.61 × 66,180.57
  4. Step 4: Simplify right side
    122,461.80x = 12,145,564,757.12
  5. Step 5: Solve for x
    x = 12,145,564,757.12/122,461.80
  6. Step 6: Final answer
    x = 99,178.39

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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.