Home / 122,277.72-183,416.52-80,715

Finding the Fourth Proportional to 122,277.72, 183,416.52 and 80,715

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Solution

The fourth proportional to 122,277.72, 183,416.52 and 80,715 is: 121,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,277.72 : 183,416.52 = 80,715 : x
  2. Step 2: Convert to fraction form
    122,277.72/183,416.52 = 80,715/x
  3. Step 3: Cross multiply
    122,277.72x = 183,416.52 × 80,715
  4. Step 4: Simplify right side
    122,277.72x = 14,804,464,411.80
  5. Step 5: Solve for x
    x = 14,804,464,411.80/122,277.72
  6. Step 6: Final answer
    x = 121,072.46

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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.