Home / 115,361.64-172,938.78-45,291.24

Finding the Fourth Proportional to 115,361.64, 172,938.78 and 45,291.24

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Solution

The fourth proportional to 115,361.64, 172,938.78 and 45,291.24 is: 67,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,361.64 : 172,938.78 = 45,291.24 : x
  2. Step 2: Convert to fraction form
    115,361.64/172,938.78 = 45,291.24/x
  3. Step 3: Cross multiply
    115,361.64x = 172,938.78 × 45,291.24
  4. Step 4: Simplify right side
    115,361.64x = 7,832,611,790.29
  5. Step 5: Solve for x
    x = 7,832,611,790.29/115,361.64
  6. Step 6: Final answer
    x = 67,896.15

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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.