Home / 120,448.16-180,847.20-88,955.36

Finding the Fourth Proportional to 120,448.16, 180,847.20 and 88,955.36

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Solution

The fourth proportional to 120,448.16, 180,847.20 and 88,955.36 is: 133,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,448.16 : 180,847.20 = 88,955.36 : x
  2. Step 2: Convert to fraction form
    120,448.16/180,847.20 = 88,955.36/x
  3. Step 3: Cross multiply
    120,448.16x = 180,847.20 × 88,955.36
  4. Step 4: Simplify right side
    120,448.16x = 16,087,327,780.99
  5. Step 5: Solve for x
    x = 16,087,327,780.99/120,448.16
  6. Step 6: Final answer
    x = 133,562.25

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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.