Home / 122,512.60-183,768.90-39,406.60

Finding the Fourth Proportional to 122,512.60, 183,768.90 and 39,406.60

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Solution

The fourth proportional to 122,512.60, 183,768.90 and 39,406.60 is: 59,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,512.60 : 183,768.90 = 39,406.60 : x
  2. Step 2: Convert to fraction form
    122,512.60/183,768.90 = 39,406.60/x
  3. Step 3: Cross multiply
    122,512.60x = 183,768.90 × 39,406.60
  4. Step 4: Simplify right side
    122,512.60x = 7,241,707,534.74
  5. Step 5: Solve for x
    x = 7,241,707,534.74/122,512.60
  6. Step 6: Final answer
    x = 59,109.90

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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.