Home / 115,441.40-173,162.10-103,631.60

Finding the Fourth Proportional to 115,441.40, 173,162.10 and 103,631.60

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Solution

The fourth proportional to 115,441.40, 173,162.10 and 103,631.60 is: 155,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,441.40 : 173,162.10 = 103,631.60 : x
  2. Step 2: Convert to fraction form
    115,441.40/173,162.10 = 103,631.60/x
  3. Step 3: Cross multiply
    115,441.40x = 173,162.10 × 103,631.60
  4. Step 4: Simplify right side
    115,441.40x = 17,945,065,482.36
  5. Step 5: Solve for x
    x = 17,945,065,482.36/115,441.40
  6. Step 6: Final answer
    x = 155,447.40

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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.