Home / 115,443.12-173,362.32-71,331.60

Finding the Fourth Proportional to 115,443.12, 173,362.32 and 71,331.60

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Solution

The fourth proportional to 115,443.12, 173,362.32 and 71,331.60 is: 107,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,443.12 : 173,362.32 = 71,331.60 : x
  2. Step 2: Convert to fraction form
    115,443.12/173,362.32 = 71,331.60/x
  3. Step 3: Cross multiply
    115,443.12x = 173,362.32 × 71,331.60
  4. Step 4: Simplify right side
    115,443.12x = 12,366,211,665.31
  5. Step 5: Solve for x
    x = 12,366,211,665.31/115,443.12
  6. Step 6: Final answer
    x = 107,119.52

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1.5x scale

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.