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Finding the Fourth Proportional to 120,009.36, 180,014.04 and 36,903.36

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Solution

The fourth proportional to 120,009.36, 180,014.04 and 36,903.36 is: 55,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,009.36 : 180,014.04 = 36,903.36 : x
  2. Step 2: Convert to fraction form
    120,009.36/180,014.04 = 36,903.36/x
  3. Step 3: Cross multiply
    120,009.36x = 180,014.04 × 36,903.36
  4. Step 4: Simplify right side
    120,009.36x = 6,643,122,923.17
  5. Step 5: Solve for x
    x = 6,643,122,923.17/120,009.36
  6. Step 6: Final answer
    x = 55,355.04

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1.5x scale

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.