Home / 136,421.22-188,260.94-75,991.23

Finding the Fourth Proportional to 136,421.22, 188,260.94 and 75,991.23

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Solution

The fourth proportional to 136,421.22, 188,260.94 and 75,991.23 is: 104,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,421.22 : 188,260.94 = 75,991.23 : x
  2. Step 2: Convert to fraction form
    136,421.22/188,260.94 = 75,991.23/x
  3. Step 3: Cross multiply
    136,421.22x = 188,260.94 × 75,991.23
  4. Step 4: Simplify right side
    136,421.22x = 14,306,180,581.53
  5. Step 5: Solve for x
    x = 14,306,180,581.53/136,421.22
  6. Step 6: Final answer
    x = 104,867.70

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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.