Home / 112,850.40-155,662.74-72,616.44

Finding the Fourth Proportional to 112,850.40, 155,662.74 and 72,616.44

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Solution

The fourth proportional to 112,850.40, 155,662.74 and 72,616.44 is: 100,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,850.40 : 155,662.74 = 72,616.44 : x
  2. Step 2: Convert to fraction form
    112,850.40/155,662.74 = 72,616.44/x
  3. Step 3: Cross multiply
    112,850.40x = 155,662.74 × 72,616.44
  4. Step 4: Simplify right side
    112,850.40x = 11,303,674,019.45
  5. Step 5: Solve for x
    x = 11,303,674,019.45/112,850.40
  6. Step 6: Final answer
    x = 100,165.12

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1.5x scale

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.