Home / 144,722.90-199,728.20-87,376.34

Finding the Fourth Proportional to 144,722.90, 199,728.20 and 87,376.34

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Solution

The fourth proportional to 144,722.90, 199,728.20 and 87,376.34 is: 120,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,722.90 : 199,728.20 = 87,376.34 : x
  2. Step 2: Convert to fraction form
    144,722.90/199,728.20 = 87,376.34/x
  3. Step 3: Cross multiply
    144,722.90x = 199,728.20 × 87,376.34
  4. Step 4: Simplify right side
    144,722.90x = 17,451,519,110.79
  5. Step 5: Solve for x
    x = 17,451,519,110.79/144,722.90
  6. Step 6: Final answer
    x = 120,585.75

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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.