Home / 155,919.19-215,025.01-102,184.69

Finding the Fourth Proportional to 155,919.19, 215,025.01 and 102,184.69

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Solution

The fourth proportional to 155,919.19, 215,025.01 and 102,184.69 is: 140,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,919.19 : 215,025.01 = 102,184.69 : x
  2. Step 2: Convert to fraction form
    155,919.19/215,025.01 = 102,184.69/x
  3. Step 3: Cross multiply
    155,919.19x = 215,025.01 × 102,184.69
  4. Step 4: Simplify right side
    155,919.19x = 21,972,263,989.10
  5. Step 5: Solve for x
    x = 21,972,263,989.10/155,919.19
  6. Step 6: Final answer
    x = 140,920.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.