Home / 113,863.05-155,991.67-109,605.07

Finding the Fourth Proportional to 113,863.05, 155,991.67 and 109,605.07

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Solution

The fourth proportional to 113,863.05, 155,991.67 and 109,605.07 is: 150,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,863.05 : 155,991.67 = 109,605.07 : x
  2. Step 2: Convert to fraction form
    113,863.05/155,991.67 = 109,605.07/x
  3. Step 3: Cross multiply
    113,863.05x = 155,991.67 × 109,605.07
  4. Step 4: Simplify right side
    113,863.05x = 17,097,477,909.77
  5. Step 5: Solve for x
    x = 17,097,477,909.77/113,863.05
  6. Step 6: Final answer
    x = 150,158.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.