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Finding the Fourth Proportional to 120,030.60, 179,930.70 and 93,361.80

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Solution

The fourth proportional to 120,030.60, 179,930.70 and 93,361.80 is: 139,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030.60 : 179,930.70 = 93,361.80 : x
  2. Step 2: Convert to fraction form
    120,030.60/179,930.70 = 93,361.80/x
  3. Step 3: Cross multiply
    120,030.60x = 179,930.70 × 93,361.80
  4. Step 4: Simplify right side
    120,030.60x = 16,798,654,027.26
  5. Step 5: Solve for x
    x = 16,798,654,027.26/120,030.60
  6. Step 6: Final answer
    x = 139,953.10

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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.