Home / 158,982.69-219,393.63-87,361.17

Finding the Fourth Proportional to 158,982.69, 219,393.63 and 87,361.17

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Solution

The fourth proportional to 158,982.69, 219,393.63 and 87,361.17 is: 120,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,982.69 : 219,393.63 = 87,361.17 : x
  2. Step 2: Convert to fraction form
    158,982.69/219,393.63 = 87,361.17/x
  3. Step 3: Cross multiply
    158,982.69x = 219,393.63 × 87,361.17
  4. Step 4: Simplify right side
    158,982.69x = 19,166,484,207.35
  5. Step 5: Solve for x
    x = 19,166,484,207.35/158,982.69
  6. Step 6: Final answer
    x = 120,557.05

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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.