Home / 155,344.69-214,373.61-87,361.64

Finding the Fourth Proportional to 155,344.69, 214,373.61 and 87,361.64

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Solution

The fourth proportional to 155,344.69, 214,373.61 and 87,361.64 is: 120,557.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,344.69 : 214,373.61 = 87,361.64 : x
  2. Step 2: Convert to fraction form
    155,344.69/214,373.61 = 87,361.64/x
  3. Step 3: Cross multiply
    155,344.69x = 214,373.61 × 87,361.64
  4. Step 4: Simplify right side
    155,344.69x = 18,728,030,142.32
  5. Step 5: Solve for x
    x = 18,728,030,142.32/155,344.69
  6. Step 6: Final answer
    x = 120,557.91

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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.