Home / 155,701.44-214,868.64-87,719.22

Finding the Fourth Proportional to 155,701.44, 214,868.64 and 87,719.22

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Solution

The fourth proportional to 155,701.44, 214,868.64 and 87,719.22 is: 121,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,701.44 : 214,868.64 = 87,719.22 : x
  2. Step 2: Convert to fraction form
    155,701.44/214,868.64 = 87,719.22/x
  3. Step 3: Cross multiply
    155,701.44x = 214,868.64 × 87,719.22
  4. Step 4: Simplify right side
    155,701.44x = 18,848,109,503.26
  5. Step 5: Solve for x
    x = 18,848,109,503.26/155,701.44
  6. Step 6: Final answer
    x = 121,052.89

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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.