Home / 122,520.12-183,732.59-47,630.36

Finding the Fourth Proportional to 122,520.12, 183,732.59 and 47,630.36

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Solution

The fourth proportional to 122,520.12, 183,732.59 and 47,630.36 is: 71,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,520.12 : 183,732.59 = 47,630.36 : x
  2. Step 2: Convert to fraction form
    122,520.12/183,732.59 = 47,630.36/x
  3. Step 3: Cross multiply
    122,520.12x = 183,732.59 × 47,630.36
  4. Step 4: Simplify right side
    122,520.12x = 8,751,248,248.62
  5. Step 5: Solve for x
    x = 8,751,248,248.62/122,520.12
  6. Step 6: Final answer
    x = 71,427.03

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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.