Home / 155,742.50-214,924.79-84,122.58

Finding the Fourth Proportional to 155,742.50, 214,924.79 and 84,122.58

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Solution

The fourth proportional to 155,742.50, 214,924.79 and 84,122.58 is: 116,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,742.50 : 214,924.79 = 84,122.58 : x
  2. Step 2: Convert to fraction form
    155,742.50/214,924.79 = 84,122.58/x
  3. Step 3: Cross multiply
    155,742.50x = 214,924.79 × 84,122.58
  4. Step 4: Simplify right side
    155,742.50x = 18,080,028,383.84
  5. Step 5: Solve for x
    x = 18,080,028,383.84/155,742.50
  6. Step 6: Final answer
    x = 116,089.24

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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.