Home / 136,972.80-205,281.18-55,825.05

Finding the Fourth Proportional to 136,972.80, 205,281.18 and 55,825.05

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Solution

The fourth proportional to 136,972.80, 205,281.18 and 55,825.05 is: 83,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,972.80 : 205,281.18 = 55,825.05 : x
  2. Step 2: Convert to fraction form
    136,972.80/205,281.18 = 55,825.05/x
  3. Step 3: Cross multiply
    136,972.80x = 205,281.18 × 55,825.05
  4. Step 4: Simplify right side
    136,972.80x = 11,459,832,137.56
  5. Step 5: Solve for x
    x = 11,459,832,137.56/136,972.80
  6. Step 6: Final answer
    x = 83,665.02

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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.