Home / 122,313.60-183,470.40-111,427.20

Finding the Fourth Proportional to 122,313.60, 183,470.40 and 111,427.20

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Solution

The fourth proportional to 122,313.60, 183,470.40 and 111,427.20 is: 167,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,313.60 : 183,470.40 = 111,427.20 : x
  2. Step 2: Convert to fraction form
    122,313.60/183,470.40 = 111,427.20/x
  3. Step 3: Cross multiply
    122,313.60x = 183,470.40 × 111,427.20
  4. Step 4: Simplify right side
    122,313.60x = 20,443,592,954.88
  5. Step 5: Solve for x
    x = 20,443,592,954.88/122,313.60
  6. Step 6: Final answer
    x = 167,140.80

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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.