Home / 144,723.90-199,729.58-87,377.34

Finding the Fourth Proportional to 144,723.90, 199,729.58 and 87,377.34

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Solution

The fourth proportional to 144,723.90, 199,729.58 and 87,377.34 is: 120,587.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,723.90 : 199,729.58 = 87,377.34 : x
  2. Step 2: Convert to fraction form
    144,723.90/199,729.58 = 87,377.34/x
  3. Step 3: Cross multiply
    144,723.90x = 199,729.58 × 87,377.34
  4. Step 4: Simplify right side
    144,723.90x = 17,451,839,419.72
  5. Step 5: Solve for x
    x = 17,451,839,419.72/144,723.90
  6. Step 6: Final answer
    x = 120,587.13

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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.