Home / 161,855.25-242,852.82-86,887.84

Finding the Fourth Proportional to 161,855.25, 242,852.82 and 86,887.84

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Solution

The fourth proportional to 161,855.25, 242,852.82 and 86,887.84 is: 130,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,855.25 : 242,852.82 = 86,887.84 : x
  2. Step 2: Convert to fraction form
    161,855.25/242,852.82 = 86,887.84/x
  3. Step 3: Cross multiply
    161,855.25x = 242,852.82 × 86,887.84
  4. Step 4: Simplify right side
    161,855.25x = 21,100,956,967.71
  5. Step 5: Solve for x
    x = 21,100,956,967.71/161,855.25
  6. Step 6: Final answer
    x = 130,369.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.