Home / 111,771.08-154,204.91-63,365.91

Finding the Fourth Proportional to 111,771.08, 154,204.91 and 63,365.91

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Solution

The fourth proportional to 111,771.08, 154,204.91 and 63,365.91 is: 87,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,771.08 : 154,204.91 = 63,365.91 : x
  2. Step 2: Convert to fraction form
    111,771.08/154,204.91 = 63,365.91/x
  3. Step 3: Cross multiply
    111,771.08x = 154,204.91 × 63,365.91
  4. Step 4: Simplify right side
    111,771.08x = 9,771,334,131.79
  5. Step 5: Solve for x
    x = 9,771,334,131.79/111,771.08
  6. Step 6: Final answer
    x = 87,422.74

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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.