Home / 120,225.97-180,380.40-53,712.01

Finding the Fourth Proportional to 120,225.97, 180,380.40 and 53,712.01

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Solution

The fourth proportional to 120,225.97, 180,380.40 and 53,712.01 is: 80,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,225.97 : 180,380.40 = 53,712.01 : x
  2. Step 2: Convert to fraction form
    120,225.97/180,380.40 = 53,712.01/x
  3. Step 3: Cross multiply
    120,225.97x = 180,380.40 × 53,712.01
  4. Step 4: Simplify right side
    120,225.97x = 9,688,593,848.60
  5. Step 5: Solve for x
    x = 9,688,593,848.60/120,225.97
  6. Step 6: Final answer
    x = 80,586.53

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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.