Home / 152,208.22-210,069.62-87,665.04

Finding the Fourth Proportional to 152,208.22, 210,069.62 and 87,665.04

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Solution

The fourth proportional to 152,208.22, 210,069.62 and 87,665.04 is: 120,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,208.22 : 210,069.62 = 87,665.04 : x
  2. Step 2: Convert to fraction form
    152,208.22/210,069.62 = 87,665.04/x
  3. Step 3: Cross multiply
    152,208.22x = 210,069.62 × 87,665.04
  4. Step 4: Simplify right side
    152,208.22x = 18,415,761,377.72
  5. Step 5: Solve for x
    x = 18,415,761,377.72/152,208.22
  6. Step 6: Final answer
    x = 120,990.59

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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.