Home / 105,349.10-158,006.32-45,361.40

Finding the Fourth Proportional to 105,349.10, 158,006.32 and 45,361.40

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Solution

The fourth proportional to 105,349.10, 158,006.32 and 45,361.40 is: 68,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,349.10 : 158,006.32 = 45,361.40 : x
  2. Step 2: Convert to fraction form
    105,349.10/158,006.32 = 45,361.40/x
  3. Step 3: Cross multiply
    105,349.10x = 158,006.32 × 45,361.40
  4. Step 4: Simplify right side
    105,349.10x = 7,167,388,165.66
  5. Step 5: Solve for x
    x = 7,167,388,165.66/105,349.10
  6. Step 6: Final answer
    x = 68,034.64

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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.