Home / 109,556.10-151,173.72-64,223.64

Finding the Fourth Proportional to 109,556.10, 151,173.72 and 64,223.64

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Solution

The fourth proportional to 109,556.10, 151,173.72 and 64,223.64 is: 88,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,556.10 : 151,173.72 = 64,223.64 : x
  2. Step 2: Convert to fraction form
    109,556.10/151,173.72 = 64,223.64/x
  3. Step 3: Cross multiply
    109,556.10x = 151,173.72 × 64,223.64
  4. Step 4: Simplify right side
    109,556.10x = 9,708,926,570.74
  5. Step 5: Solve for x
    x = 9,708,926,570.74/109,556.10
  6. Step 6: Final answer
    x = 88,620.59

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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.