Home / 116,919.40-161,311.98-71,550.08

Finding the Fourth Proportional to 116,919.40, 161,311.98 and 71,550.08

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Solution

The fourth proportional to 116,919.40, 161,311.98 and 71,550.08 is: 98,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,919.40 : 161,311.98 = 71,550.08 : x
  2. Step 2: Convert to fraction form
    116,919.40/161,311.98 = 71,550.08/x
  3. Step 3: Cross multiply
    116,919.40x = 161,311.98 × 71,550.08
  4. Step 4: Simplify right side
    116,919.40x = 11,541,885,073.96
  5. Step 5: Solve for x
    x = 11,541,885,073.96/116,919.40
  6. Step 6: Final answer
    x = 98,716.60

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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.