Home / 154,160.21-212,741.94-86,180.04

Finding the Fourth Proportional to 154,160.21, 212,741.94 and 86,180.04

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Solution

The fourth proportional to 154,160.21, 212,741.94 and 86,180.04 is: 118,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,160.21 : 212,741.94 = 86,180.04 : x
  2. Step 2: Convert to fraction form
    154,160.21/212,741.94 = 86,180.04/x
  3. Step 3: Cross multiply
    154,160.21x = 212,741.94 × 86,180.04
  4. Step 4: Simplify right side
    154,160.21x = 18,334,108,467.98
  5. Step 5: Solve for x
    x = 18,334,108,467.98/154,160.21
  6. Step 6: Final answer
    x = 118,928.93

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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.